30:I[269135,["/_next/static/immutable/chunks/0x-9rc1bm-510.js","/_next/static/immutable/chunks/1-ok5a6y46ntq.js","/_next/static/immutable/chunks/177782b1-ud5r.js","/_next/static/immutable/chunks/2d9prc889tmzl.js","/_next/static/immutable/chunks/3yrtz_8juddfr.js","/_next/static/immutable/chunks/3whi70ye-gypr.js","/_next/static/immutable/chunks/2uv04na9mwclv.js"],"BookmarkProvider"] 31:I[922552,["/_next/static/immutable/chunks/0x-9rc1bm-510.js","/_next/static/immutable/chunks/1-ok5a6y46ntq.js","/_next/static/immutable/chunks/177782b1-ud5r.js","/_next/static/immutable/chunks/2d9prc889tmzl.js","/_next/static/immutable/chunks/3yrtz_8juddfr.js","/_next/static/immutable/chunks/3whi70ye-gypr.js","/_next/static/immutable/chunks/2uv04na9mwclv.js"],"ExamDetailTabs"] 32:I[473668,["/_next/static/immutable/chunks/0x-9rc1bm-510.js","/_next/static/immutable/chunks/1-ok5a6y46ntq.js","/_next/static/immutable/chunks/177782b1-ud5r.js","/_next/static/immutable/chunks/2d9prc889tmzl.js","/_next/static/immutable/chunks/3yrtz_8juddfr.js","/_next/static/immutable/chunks/3whi70ye-gypr.js","/_next/static/immutable/chunks/2uv04na9mwclv.js"],"TabsList"] 33:I[473668,["/_next/static/immutable/chunks/0x-9rc1bm-510.js","/_next/static/immutable/chunks/1-ok5a6y46ntq.js","/_next/static/immutable/chunks/177782b1-ud5r.js","/_next/static/immutable/chunks/2d9prc889tmzl.js","/_next/static/immutable/chunks/3yrtz_8juddfr.js","/_next/static/immutable/chunks/3whi70ye-gypr.js","/_next/static/immutable/chunks/2uv04na9mwclv.js"],"TabsTrigger"] 34:I[473668,["/_next/static/immutable/chunks/0x-9rc1bm-510.js","/_next/static/immutable/chunks/1-ok5a6y46ntq.js","/_next/static/immutable/chunks/177782b1-ud5r.js","/_next/static/immutable/chunks/2d9prc889tmzl.js","/_next/static/immutable/chunks/3yrtz_8juddfr.js","/_next/static/immutable/chunks/3whi70ye-gypr.js","/_next/static/immutable/chunks/2uv04na9mwclv.js"],"TabsContent"] 35:I[400121,["/_next/static/immutable/chunks/0x-9rc1bm-510.js","/_next/static/immutable/chunks/1-ok5a6y46ntq.js","/_next/static/immutable/chunks/177782b1-ud5r.js","/_next/static/immutable/chunks/2d9prc889tmzl.js","/_next/static/immutable/chunks/3yrtz_8juddfr.js","/_next/static/immutable/chunks/3whi70ye-gypr.js","/_next/static/immutable/chunks/2uv04na9mwclv.js"],"PracticeTab"] 2c:["$","div",null,{"className":"space-y-3","children":[["$","div",null,{"className":"flex items-center justify-between","children":[["$","div",null,{"className":"flex items-center gap-2 text-muted-foreground","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-book-open w-4 h-4","aria-hidden":"true","children":[["$","path","1akyts",{"d":"M12 7v14"}],["$","path","ruj8y",{"d":"M3 18a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h5a4 4 0 0 1 4 4 4 4 0 0 1 4-4h5a1 1 0 0 1 1 1v13a1 1 0 0 1-1 1h-6a3 3 0 0 0-3 3 3 3 0 0 0-3-3z"}],"$undefined"]}],["$","span",null,{"className":"text-sm","children":"Total Questions"}]]}],["$","span",null,{"className":"text-[#17314C] text-sm","children":73}]]}],["$","div",null,{"className":"flex items-center justify-between","children":[["$","div",null,{"className":"flex items-center gap-2 text-muted-foreground","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-clock w-4 h-4","aria-hidden":"true","children":[["$","circle","1mglay",{"cx":"12","cy":"12","r":"10"}],["$","path","mmk7yg",{"d":"M12 6v6l4 2"}],"$undefined"]}],["$","span",null,{"className":"text-sm","children":"Last Updated"}]]}],["$","span",null,{"className":"text-[#17314C] text-sm","children":"Aug. 2026"}]]}],["$","div",null,{"className":"flex items-center justify-between","children":[["$","div",null,{"className":"flex items-center gap-2 text-muted-foreground","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-star w-4 h-4","aria-hidden":"true","children":[["$","path","r04s7s",{"d":"M11.525 2.295a.53.53 0 0 1 .95 0l2.31 4.679a2.123 2.123 0 0 0 1.595 1.16l5.166.756a.53.53 0 0 1 .294.904l-3.736 3.638a2.123 2.123 0 0 0-.611 1.878l.882 5.14a.53.53 0 0 1-.771.56l-4.618-2.428a2.122 2.122 0 0 0-1.973 0L6.396 21.01a.53.53 0 0 1-.77-.56l.881-5.139a2.122 2.122 0 0 0-.611-1.879L2.16 9.795a.53.53 0 0 1 .294-.906l5.165-.755a2.122 2.122 0 0 0 1.597-1.16z"}],"$undefined"]}],["$","span",null,{"className":"text-sm","children":"Rating"}]]}],["$","div",null,{"className":"flex items-center gap-1","children":[["$","span",null,{"className":"text-[#17314C] text-sm","children":"4.8"}],["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-star w-3 h-3 fill-yellow-400 text-yellow-400","aria-hidden":"true","children":[["$","path","r04s7s",{"d":"M11.525 2.295a.53.53 0 0 1 .95 0l2.31 4.679a2.123 2.123 0 0 0 1.595 1.16l5.166.756a.53.53 0 0 1 .294.904l-3.736 3.638a2.123 2.123 0 0 0-.611 1.878l.882 5.14a.53.53 0 0 1-.771.56l-4.618-2.428a2.122 2.122 0 0 0-1.973 0L6.396 21.01a.53.53 0 0 1-.77-.56l.881-5.139a2.122 2.122 0 0 0-.611-1.879L2.16 9.795a.53.53 0 0 1 .294-.906l5.165-.755a2.122 2.122 0 0 0 1.597-1.16z"}],"$undefined"]}]]}]]}]]}] 2d:["$","div",null,{"data-slot":"card","className":"bg-card text-card-foreground flex flex-col gap-6 rounded-xl border flex-1","children":["$","div",null,{"data-slot":"card-content","className":"[&:last-child]:pb-6 p-5 space-y-4","children":[["$","h4",null,{"className":"text-[#17314C]","children":"Question Types"}],["$","div",null,{"className":"space-y-3","children":[["$","div","Multi choices",{"className":"flex items-center justify-between","children":[["$","div",null,{"className":"flex items-center gap-2 text-muted-foreground","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-list-checks w-4 h-4","aria-hidden":"true","children":[["$","path","a7qcls",{"d":"M13 5h8"}],["$","path","h98zly",{"d":"M13 12h8"}],["$","path","c3s6r1",{"d":"M13 19h8"}],["$","path","1jhpwq",{"d":"m3 17 2 2 4-4"}],["$","path","1obspn",{"d":"m3 7 2 2 4-4"}],"$undefined"]}],["$","span",null,{"className":"text-sm","children":"Multi choices"}]]}],["$","span",null,{"className":"text-[#17314C] text-sm","children":73}]]}]]}]]}]}] 2e:["$","div",null,{"data-slot":"card","className":"bg-card text-card-foreground flex flex-col gap-6 rounded-xl border-[#1B76AC] border-2 flex-1","children":["$","div",null,{"data-slot":"card-content","className":"[&:last-child]:pb-6 p-5 text-center","children":[["$","$L19",null,{"href":"/pricing/oracle/1z0-829?redirect=%2Fexams%2Foracle%2F1z0-829%3Fpage%3D2","className":"inline-flex w-full items-center justify-center rounded-lg bg-[#1B76AC] px-4 py-2.5 text-white hover:bg-[#155d8a] mb-3","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-bookmark-check w-4 h-4 mr-2","aria-hidden":"true","children":[["$","path","oz39mx",{"d":"M17 3a2 2 0 0 1 2 2v15a1 1 0 0 1-1.496.868l-4.512-2.578a2 2 0 0 0-1.984 0l-4.512 2.578A1 1 0 0 1 5 20V5a2 2 0 0 1 2-2z"}],["$","path","1gnqz4",{"d":"m9 10 2 2 4-4"}],"$undefined"]}]," Get Full Access"],"prefetch":false}],["$","div",null,{"className":"mt-4 space-y-2 text-sm text-muted-foreground text-left","children":[["$","div",null,{"className":"flex items-center gap-2","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-circle-check-big w-4 h-4 text-green-600","aria-hidden":"true","children":[["$","path","yps3ct",{"d":"M21.801 10A10 10 0 1 1 17 3.335"}],["$","path","1pflzl",{"d":"m9 11 3 3L22 4"}],"$undefined"]}],["$","span",null,{"children":"Unlimited access to all questions"}]]}],["$","div",null,{"className":"flex items-center gap-2","children":[["$","svg",null,{"ref":"$undefined","xmlns":"http://www.w3.org/2000/svg","width":24,"height":24,"viewBox":"0 0 24 24","fill":"none","stroke":"currentColor","strokeWidth":2,"strokeLinecap":"round","strokeLinejoin":"round","className":"lucide lucide-circle-check-big w-4 h-4 text-green-600","aria-hidden":"true","children":[["$","path","yps3ct",{"d":"M21.801 10A10 10 0 1 1 17 3.335"}],["$","path","1pflzl",{"d":"m9 11 3 3L22 4"}],"$undefined"]}],["$","span",null,{"children":"Detailed explanations for every question"}]]}]]}]]}]}] 36:T69e,## 1. Correct Answer **E.** Make the regNo variable static. --- ## 2. Evaluation **A.** Replace record with void. This does not make sense syntactically. Replacing `record` with `void` would not create a valid type declaration, so the code still would not compile. **B.** Replace record with class. Simply changing `record` to `class` is not enough, because `class Product(int pNumber, String pName)` is not valid class syntax. That parameter list is valid for a record header, not for a normal class declaration. **C.** Remove the regNo initialization statement. This would still leave `regNo` as an instance field inside a record. Records cannot declare additional non-static instance fields beyond their record components, so compilation would still fail. **D.** Make the regNo variable public. Changing the access modifier does not solve the real problem. The issue is that `regNo` is a non-static field declared in a record body, which is not allowed. **E.** Make the regNo variable static. This enables compilation because records may declare **static** fields, but they may not declare additional **instance** fields in the record body. After changing `regNo` to `static`, the method can return it and the record can be instantiated normally. --- ## 3. Overall Explanation The code fails because a **record cannot declare extra instance fields** in its body. In `record Product(int pNumber, String pName)`, the components `pNumber` and `pName` already define the record's instance state. So this line is illegal in a record: ```java int regNo = 100; ``` Making it `static` fixes the problem: ```java static int regNo = 100; ``` Therefore, the correct answer is **E**.37:T5c0,## 1. Correct Answer **C.** 0 SNOWY --- ## 2. Evaluation **A.** 0 CLOUDY The first print outputs `0` because `SUNNY.ordinal()` is `0`. The second print resolves `valueOf("CLOUDY")`, and printing that enum constant uses the overridden `toString()`, which returns `SNOWY`, so the full output is `0 SNOWY`. **B.** 1 SNOWY The ordinal part is correct, but the second part is not `SNOWY` because of the enum constant name alone; it is `SNOWY` specifically because `toString()` is overridden. The output still begins with `0`, but this option is incomplete/mismatched as a whole. **C.** 0 SNOWY This matches the code exactly: `SUNNY.ordinal()` prints `0`, then `valueOf("cloudy".toUpperCase())` returns `CLOUDY`, and the overridden `toString()` prints `SNOWY`. The result is `0 SNOWY`. **D.** 1 RAINY `RAINY` is never selected by `valueOf`, since the string passed becomes `CLOUDY`. The first value is also `0`, not `1`. **E.** Compilation fails The code compiles successfully: the enum constant names are valid, `valueOf` is called with an existing name after `toUpperCase()`, and overriding `toString()` in an enum is allowed. --- ## 3. Overall Explanation `Forecast.SUNNY.ordinal()` returns `0`, so the first print is `0 `. Then `"cloudy".toUpperCase()` becomes `"CLOUDY"`, so `Forecast.valueOf(...)` returns the `CLOUDY` enum constant. Because `toString()` is overridden to return `SNOWY`, printing the enum outputs `SNOWY`. Therefore the result is `0 SNOWY`.38:T62c,## 1. Correct Answer **B.** false true true Optional[NewYear] --- ## 2. Evaluation **A.** 0 1 1 0 `allMatch(s -> s.equals("Labour"))` is `false` because not every element is `"Labour"`. So this output does not match the actual first value. **B.** false true true Optional[NewYear] `allMatch(...)` is `false` because the list contains values other than `"Labour"`. `anyMatch(...)` is `true` because `"Labour"` appears in the list. `noneMatch(...)` is `true` because `"Halloween"` does not appear. `findFirst()` returns the first element wrapped in an `Optional`, so it prints `Optional[NewYear]`. **C.** 0 1 0 Optional[NewYear] The first value is not `0`; these stream match methods return booleans, not numeric values. Also, `noneMatch(s -> s.equals("Halloween"))` evaluates to `true`, not `0`. **D.** true true false NewYear The first three boolean values should be `false true true`, not `true true false`. Also, `findFirst()` returns an `Optional`, so it prints `Optional[NewYear]`, not just `NewYear`. --- ## 3. Overall Explanation The stream operations evaluate as follows: - `allMatch(s -> s.equals("Labour"))` → `false`, because only one element is `"Labour"` - `anyMatch(s -> s.equals("Labour"))` → `true`, because `"Labour"` exists in the list - `noneMatch(s -> s.equals("Halloween"))` → `true`, because `"Halloween"` is not present - `findFirst()` → `Optional[NewYear]`, because `findFirst()` returns an `Optional` containing the first element So the output is: `false true true Optional[NewYear]` Therefore, the correct answer is **B**.39:T641,## 1. Correct Answer **D.** Only one of the objects previously referenced by t1 is eligible for garbage collection. --- ## 2. Evaluation **A.** Both the objects previously referenced by t1 are eligible for garbage collection. The object created by `new App("t1")` becomes unreachable after `t1 = t2;` because no variable points to it anymore. The object created by `new App("t2")` is still reachable through `t2`, so only one previously referenced object is eligible for garbage collection. **B.** None of the objects are eligible for garbage collection. One object is unreachable at the time `GC` is printed, so this cannot be true. `t2` still holds a reference to the `App("t2")` object. **C.** Only the object referenced by t2 is eligible for garbage collection. The object referenced by `t2` is not eligible, because `t2` still points to it. Only the original `App("t1")` object is eligible. **D.** Only one of the objects previously referenced by t1 is eligible for garbage collection. This is correct. After `t1 = t2;`, the original `App("t1")` object loses its last reference and becomes eligible for garbage collection. Then `t1 = null;` does not affect `t2`, so the `App("t2")` object remains reachable. --- ## 3. Overall Explanation At the moment `System.out.println("GC");` executes, the first object created with `new App("t1")` is unreachable and therefore eligible for garbage collection. The second object, created with `new App("t2")`, is still referenced by `t2`, so it is not eligible. Therefore, only one of the objects previously referenced by `t1` is eligible for GC.2f:["$","$L30",null,{"examId":1809,"initialBookmarkedIds":[],"children":["$","$L31",null,{"initialTab":"practice","allowBookmarked":false,"tabResetKey":"implicit","children":[["$","$L32",null,{"className":"mb-6","children":[["$","$L33",null,{"value":"practice","children":"Practice Questions"}],null]}],["$","$L34",null,{"value":"practice","children":[["$","$L35",null,{"questions":[{"id":290478,"sortOrder":6,"type":"multiple_choice","domain":null,"visibility":"full","questionText":"

\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\tGiven the code fragment:
$\"image6\"/$
Which action enables the code to compile?\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t

","questionPreview":null,"options":[{"id":1123366,"position":0,"text":"Replace record with void.","imageUrl":null},{"id":1123367,"position":1,"text":"Replace record with class.","imageUrl":null},{"id":1123368,"position":2,"text":"Remove the regNo initialization statement.","imageUrl":null},{"id":1123369,"position":3,"text":"Make the regNo variable public.","imageUrl":null},{"id":1123370,"position":4,"text":"Make the regNo variable static.","imageUrl":null}],"correctOptions":[4],"correctAnswerHtml":null,"explanation":"","aiExplanation":"$36","revealAnswer":{"schemaVersion":"mcq_option_analysis_v1","correctOptionPositions":[4],"isMultiSelect":false,"overallExplanationHtml":"

The code fails because a record cannot declare extra instance fields in its body. In record Product(int pNumber, String pName), the components pNumber and pName already define the record's instance state.

So this line is illegal in a record:

```java
int regNo = 100;
```

Making it static fixes the problem:

```java
static int regNo = 100;
```

Therefore, the correct answer is E.

","options":[{"position":0,"label":"A","explanationHtml":"

This does not make sense syntactically. Replacing record with void would not create a valid type declaration, so the code still would not compile.

","isCorrect":false},{"position":1,"label":"B","explanationHtml":"

Simply changing record to class is not enough, because class Product(int pNumber, String pName) is not valid class syntax. That parameter list is valid for a record header, not for a normal class declaration.

","isCorrect":false},{"position":2,"label":"C","explanationHtml":"

This would still leave regNo as an instance field inside a record. Records cannot declare additional non-static instance fields beyond their record components, so compilation would still fail.

","isCorrect":false},{"position":3,"label":"D","explanationHtml":"

Changing the access modifier does not solve the real problem. The issue is that regNo is a non-static field declared in a record body, which is not allowed.

","isCorrect":false},{"position":4,"label":"E","explanationHtml":"

This enables compilation because records may declare static fields, but they may not declare additional instance fields in the record body. After changing regNo to static, the method can return it and the record can be instantiated normally.

","isCorrect":true}]},"images":[{"ext":"png","hash":"804501c6dd507c24","context":"question","assetKey":"images/42a4df731955346e7b2d7ae34d66dcd40c06c13f7c6f108b4b946de0e35d0061.png"}]},{"id":290479,"sortOrder":7,"type":"multiple_choice","domain":null,"visibility":"full","questionText":"

\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\tGiven:
$\"image7\"/$
What is the result?\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t

","questionPreview":null,"options":[{"id":1123371,"position":0,"text":"0 CLOUDY","imageUrl":null},{"id":1123372,"position":1,"text":"1 SNOWY","imageUrl":null},{"id":1123373,"position":2,"text":"0 SNOWY","imageUrl":null},{"id":1123374,"position":3,"text":"1 RAINY","imageUrl":null},{"id":1123375,"position":4,"text":"Compilation fails","imageUrl":null}],"correctOptions":[2],"correctAnswerHtml":null,"explanation":"","aiExplanation":"$37","revealAnswer":{"schemaVersion":"mcq_option_analysis_v1","correctOptionPositions":[2],"isMultiSelect":false,"overallExplanationHtml":"

Forecast.SUNNY.ordinal() returns 0, so the first print is 0 . Then \"cloudy\".toUpperCase() becomes \"CLOUDY\", so Forecast.valueOf(...) returns the CLOUDY enum constant. Because toString() is overridden to return SNOWY, printing the enum outputs SNOWY. Therefore the result is 0 SNOWY.

","options":[{"position":0,"label":"A","explanationHtml":"

The first print outputs 0 because SUNNY.ordinal() is 0. The second print resolves valueOf(\"CLOUDY\"), and printing that enum constant uses the overridden toString(), which returns SNOWY, so the full output is 0 SNOWY.

","isCorrect":false},{"position":1,"label":"B","explanationHtml":"

The ordinal part is correct, but the second part is not SNOWY because of the enum constant name alone; it is SNOWY specifically because toString() is overridden. The output still begins with 0, but this option is incomplete/mismatched as a whole.

","isCorrect":false},{"position":2,"label":"C","explanationHtml":"

This matches the code exactly: SUNNY.ordinal() prints 0, then valueOf(\"cloudy\".toUpperCase()) returns CLOUDY, and the overridden toString() prints SNOWY. The result is 0 SNOWY.

","isCorrect":true},{"position":3,"label":"D","explanationHtml":"

RAINY is never selected by valueOf, since the string passed becomes CLOUDY. The first value is also 0, not 1.

","isCorrect":false},{"position":4,"label":"E","explanationHtml":"

The code compiles successfully: the enum constant names are valid, valueOf is called with an existing name after toUpperCase(), and overriding toString() in an enum is allowed.

","isCorrect":false}]},"images":[{"ext":"png","hash":"b574f3140b63b5b6","context":"question","assetKey":"images/f2447dd997def99f6e77c867ad72e686e16bfdbecd977a23cfaf92954c97fe7d.png"}]},{"id":290480,"sortOrder":8,"type":"multiple_choice","domain":null,"visibility":"full","questionText":"

\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\tGiven the code fragment:
$\"image8\"/$
What is the result?\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t

","questionPreview":null,"options":[{"id":1123376,"position":0,"text":"0 1 1 0","imageUrl":null},{"id":1123377,"position":1,"text":"false true true Optional[NewYear]","imageUrl":null},{"id":1123378,"position":2,"text":"0 1 0 Optional[NewYear]","imageUrl":null},{"id":1123379,"position":3,"text":"true true false NewYear","imageUrl":null}],"correctOptions":[1],"correctAnswerHtml":null,"explanation":"","aiExplanation":"$38","revealAnswer":{"schemaVersion":"mcq_option_analysis_v1","correctOptionPositions":[1],"isMultiSelect":false,"overallExplanationHtml":"

The stream operations evaluate as follows:

allMatch(s -> s.equals(\"Labour\")) → false, because only one element is \"Labour\"
anyMatch(s -> s.equals(\"Labour\")) → true, because \"Labour\" exists in the list
noneMatch(s -> s.equals(\"Halloween\")) → true, because \"Halloween\" is not present
findFirst() → Optional[NewYear], because findFirst() returns an Optional containing the first element

So the output is:

false true true Optional[NewYear]

Therefore, the correct answer is B.

","options":[{"position":0,"label":"A","explanationHtml":"

allMatch(s -> s.equals(\"Labour\")) is false because not every element is \"Labour\". So this output does not match the actual first value.

","isCorrect":false},{"position":1,"label":"B","explanationHtml":"

allMatch(...) is false because the list contains values other than \"Labour\". anyMatch(...) is true because \"Labour\" appears in the list. noneMatch(...) is true because \"Halloween\" does not appear. findFirst() returns the first element wrapped in an Optional, so it prints Optional[NewYear].

","isCorrect":true},{"position":2,"label":"C","explanationHtml":"

The first value is not 0; these stream match methods return booleans, not numeric values. Also, noneMatch(s -> s.equals(\"Halloween\")) evaluates to true, not 0.

","isCorrect":false},{"position":3,"label":"D","explanationHtml":"

The first three boolean values should be false true true, not true true false. Also, findFirst() returns an Optional<String>, so it prints Optional[NewYear], not just NewYear.

","isCorrect":false}]},"images":[{"ext":"png","hash":"72c6a8fdb2c09d89","context":"question","assetKey":"images/b86d5491f4cfe6f7e65f3faa07bb842995a9c4054de4c44245599f04f63bf4eb.png"}]},{"id":290481,"sortOrder":9,"type":"multiple_choice","domain":null,"visibility":"full","questionText":"

\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\tGiven:
$\"image9\"/$
Which statement is true while the program prints GC?\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t

","questionPreview":null,"options":[{"id":1123380,"position":0,"text":"Both the objects previously referenced by t1 are eligible for garbage collection.","imageUrl":null},{"id":1123381,"position":1,"text":"None of the objects are eligible for garbage collection.","imageUrl":null},{"id":1123382,"position":2,"text":"Only the object referenced by t2 is eligible for garbage collection.","imageUrl":null},{"id":1123383,"position":3,"text":"Only one of the objects previously referenced by t1 is eligible for garbage collection.","imageUrl":null}],"correctOptions":[3],"correctAnswerHtml":null,"explanation":"","aiExplanation":"$39","revealAnswer":{"schemaVersion":"mcq_option_analysis_v1","correctOptionPositions":[3],"isMultiSelect":false,"overallExplanationHtml":"

At the moment System.out.println(\"GC\"); executes, the first object created with new App(\"t1\") is unreachable and therefore eligible for garbage collection. The second object, created with new App(\"t2\"), is still referenced by t2, so it is not eligible. Therefore, only one of the objects previously referenced by t1 is eligible for GC.

","options":[{"position":0,"label":"A","explanationHtml":"

The object created by new App(\"t1\") becomes unreachable after t1 = t2; because no variable points to it anymore. The object created by new App(\"t2\") is still reachable through t2, so only one previously referenced object is eligible for garbage collection.

","isCorrect":false},{"position":1,"label":"B","explanationHtml":"

One object is unreachable at the time GC is printed, so this cannot be true. t2 still holds a reference to the App(\"t2\") object.

","isCorrect":false},{"position":2,"label":"C","explanationHtml":"

The object referenced by t2 is not eligible, because t2 still points to it. Only the original App(\"t1\") object is eligible.

","isCorrect":false},{"position":3,"label":"D","explanationHtml":"

This is correct. After t1 = t2;, the original App(\"t1\") object loses its last reference and becomes eligible for garbage collection. Then t1 = null; does not affect t2, so the App(\"t2\") object remains reachable.

","isCorrect":true}]},"images":[{"ext":"png","hash":"89e374e8f963207c","context":"question","assetKey":"images/ff69e46fb4dde63688d43147e5f41f483df7c74f779c9c47c6be5ed8d72e3236.png"}]},{"id":290482,"sortOrder":10,"type":"multiple_choice","domain":null,"visibility":"full","questionText":"

\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\tGiven:
$\"image10\"/$
What is the result?\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t

","questionPreview":null,"options":[{"id":1123384,"position":0,"text":"Compilation fails.","imageUrl":null},{"id":1123385,"position":1,"text":"there","imageUrl":null},{"id":1123386,"position":2,"text":"hello","imageUrl":null},{"id":1123387,"position":3,"text":"A NumberFormatException is thrown.","imageUrl":null}],"correctOptions":[2],"correctAnswerHtml":null,"explanation":"","aiExplanation":"## 1. Correct Answer\n**C.** hello\n\n---\n\n## 2. Evaluation\n\n**A.** Compilation fails.\n\nThe code compiles successfully. The binary literal is valid, and the overloads are also valid.\n\n**B.** there\n\n`print(long)` is applicable by widening conversion, but it is not chosen because an exact `int` overload is available and is more specific.\n\n**C.** hello\n\n`0b1101_1010` is an `int` literal with the value `218`, so `print(int)` is invoked and it prints `hello`.\n\n**D.** A NumberFormatException is thrown.\n\nNo string-to-number parsing occurs here, so there is no opportunity for a `NumberFormatException`.\n\n---\n\n## 3. Overall Explanation\n\nThe binary literal `0b1101_1010` is a valid Java `int` literal. Its value is `218`, which matches `print(int)` exactly. During overload resolution, the `int` version is preferred over `print(long)`, so the program prints `hello`.","revealAnswer":{"schemaVersion":"mcq_option_analysis_v1","correctOptionPositions":[2],"isMultiSelect":false,"overallExplanationHtml":"

The binary literal 0b1101_1010 is a valid Java int literal. Its value is 218, which matches print(int) exactly. During overload resolution, the int version is preferred over print(long), so the program prints hello.

","options":[{"position":0,"label":"A","explanationHtml":"

The code compiles successfully. The binary literal is valid, and the overloads are also valid.

","isCorrect":false},{"position":1,"label":"B","explanationHtml":"

print(long) is applicable by widening conversion, but it is not chosen because an exact int overload is available and is more specific.

","isCorrect":false},{"position":2,"label":"C","explanationHtml":"

0b1101_1010 is an int literal with the value 218, so print(int) is invoked and it prints hello.

","isCorrect":true},{"position":3,"label":"D","explanationHtml":"

No string-to-number parsing occurs here, so there is no opportunity for a NumberFormatException.

","isCorrect":false}]},"images":[{"ext":"png","hash":"589d39092ed86db1","context":"question","assetKey":"images/d3495e56810a9417c27b12b11ff567c878c6abc43ce2cc585d1a72412da3c918.png"}]}],"exam":{"id":1809,"code":"1Z0-829","shortcode":"1Z0-829","name":"Java Enterprise Development","slug":"1z0-829","description":"This certification validates practical skills in enterprise business systems, with emphasis on configuring processes, managing information, and supporting business outcomes. It is intended for professionals who implement or operate enterprise business systems.","overviewSource":"baseline","overviewText":null,"overviewHtml":null,"rating":4.8,"updatedAt":"$D2026-08-15T18:53:55.327Z","anonFreeCount":10,"registeredFreeCount":15,"price30DayCents":1999,"price90DayCents":3999,"provider":{"name":"Oracle","slug":"oracle"}},"currentPage":2,"totalPages":15,"isLoggedIn":false,"bookmarkLoginHref":"/auth/login?redirect=%2Fexams%2Foracle%2F1z0-829%3Fpage%3D2"}],"$L3a"]}],"$L3b",null]}]}]

Java Enterprise Development

Exam Details

Question Types