Free Oracle 1Z0-829 Exam Questions

Become Oracle Certified with updated 1Z0-829 exam questions and correct answers

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Total 660 Questions | Updated On: Sep 24, 2026

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Question 1

Question ID: UK8295509

Given code of Test.java file:

package com.examtest.ocp;

public class Test {

public static void main(String[] args) {

String arr1 [], arr2, arr3 = null; //Line n1

arr1 = new String[2];

arr1[0] = "A";

arr1[1] = "B";

arr2 = arr3 = arr1; //Line n2

System.out.println(String.join("-", arr2)); //Line n3

}

What is the result?

A : Line n1 causes compilation error

B : Line n2 causes compilation error

C : Line n3 causes compilation error

D : It executes successfully and prints A-B on to the console

E : It executes successfully and prints B-A on to the console

F : It executes successfully and prints A on to the console

G : It executes successfully and prints B on to the console

Answer: B

Question 2

Skipped

Question ID: UK8295920

Given code of Test.java file:

package com.examtest.ocp;

public class Test {

public static void main(String[] args) {

int x = 4;

switch (x) {

default -> System.out.println("Unknown");

case 1 -> System.out.println("x is equal to 1");

case 2 -> System.out.println("x is equal to 2");

case 3 -> System.out.println("x is equal to 3");

}

What is the result?

A : Compilation error

B : Unknown

C : Unknownx is equal to 1x is equal to 2x is equal to 3

D : Program compiles and executes successfully but produces no output

Answer: B

Question 3

Question ID: UK8298565

Consider below code of Test.java file:

package com.examtest.ocp;

public class Test {

public static void main(String[] args) {

String str = "*";

/*INSERT*/

System.out.println(str);

}

Which of the following options, if used to replace /*INSERT*/, will compile successfully and on execution will print ***** on to the console?

Choose 2 options.

A : str.repeat(5);

B : str = str.repeat(5);

C : String.repeat(str, 5);

D : str = String.repeat(str, 5);

E : str *= 5;

F : str = str * 5;

G : for(var var = 0; var < 4; var++) { str += "*";}

H : for(var var = 0; var < 4; var++) { str += "*";}

I : for(int i = 0; i < 5; i++) { str += "*";}

Answer: A,B

Question 4

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

Question 5

Question ID: UK8293374

Which of the following are Java Exception classes?

Choose 3 options.

A : ClassCastException

B : NullException

C : NumberFormatException

D : IllegalArgumentException

E : ArrayIndexException

Answer: A,C,D

Page: 1 / 132

Total 660 Questions | Updated On: Sep 24, 2026

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