Practice 1Z0-829 Exam Online

Question 1

Given the course table:

Given the code fragment:

A : 2

B : false

C : true

D : 1

Answer: C

Question 2

Question ID: UK8295518

How many of the below code statements, written inside main method will compile successfully?

1. var arr1 = new int[]{10};

2. var arr2 = new String[][] {};

3. var arr3 = new char[][] {{}};

4. var arr4 = {10, 20, 30};

5. var arr5 = new String[][] {new String[]{"LOOK"}, new String[] {"UP"}};

6. var [] arr6 = new int[] {2, 3, 4};

A : None of the statements compile successfully

B : Only 1 statement compiles successfully

C :

2 statements compile successfully

D :

3 statements compile successfully

E : 4 statements compile successfully

F : 5 statements compile successfully

G : All 6 statements compile successfully

Answer: A

Question 3

Question ID: UK8293780

Given code of Test.java file:

package com.examtest.ocp;

interface Blogger {

default void blog() throws Exception {

System.out.println("GENERIC");

}

class TravelBlogger implements Blogger {

public void blog() {

System.out.println("TRAVEL");

}

public class Test {

public static void main(String[] args) {

Blogger blogger = new TravelBlogger(); //Line n1

((TravelBlogger)blogger).blog(); //Line n2

}

What is the result?

A : Compilation error in TravelBlogger class

B :

Compilation error in Test class

C :

GENERIC is printed on to the console and program terminates successfully

D : TRAVEL is printed on to the console and program terminates successfully

E : An exception is thrown at runtime

Answer: D

Question 4

Question ID: UK8295913

Given code of Test.java file:

package com.examtest.ocp;

record Rectangle(double length, double width) {}

record Square(double side) extends Rectangle {}

public class Test {

public static void main(String[] args) {

Square sq = new Square(10.0);

System.out.println(sq);

}

What is the result?

A : Compilation error

B :

Square[side=10.0]

C : Square[Rectangle[length=10.0, width=10.0]]

D : Rectangle[length=10.0, width=10.0]

Answer: A

Question 5

Question ID: UK8292454

Given code of Test.java file:

package com.examtest.ocp;

public class Test {

private static void div(int i, int j) {

try {

System.out.println(i / j);

} catch(ArithmeticException e) {

throw (RuntimeException)e;

}

public static void main(String[] args) {

try {

div(5, 0);

} catch(ArithmeticException e) {

System.out.println("AE");

} catch(RuntimeException e) {

System.out.println("RE");

}

What is the result?

A : Compilation error

B : Program ends abruptly

C : AE is printed on to the console and program terminates successfully

D :

RE is printed on to the console and program terminates successfully

Answer: C

Name:	Java SE 17 Developer
Exam Code:	1Z0-829
Certification:	Oracle Java
Vendor:	Oracle
Total Questions:	660
Last Updated:	Apr 22, 2024

Oracle 1Z0-829