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: Jun 17, 2026

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Question 1

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

Question 2

Question ID: UK8292478

Given code of Test.java file:

package com.examtest.ocp;

import java.util.Arrays;

public class Test {

public static void main(String[] args) {

int [] array1 = {};

int [] array2 = {100, 200};

System.out.print(Arrays.compare(array1, array2));

System.out.print(Arrays.mismatch(array1, array2));

}

What is the result?

A : -20

B : -10

C : -1-1

D : 00

E : Compilation error

F : An exception is thrown at runtime

Answer: A

Question 3

Given the content of the in. tart file:

23456789

and the code fragment:

What is the content of the out .txt file?

A : 01234567801234

B : 012345678

C : 0123456789234567

D : 0123456789

E : 012345678901234

F : 01234567

Answer: D

Question 4

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 5

Question ID: UK8298152

Consider below code:

package com.examtest.ocp;

import java.time.LocalDate;

public class Test {

public static void main(String [] args) {

LocalDate d1 = LocalDate.parse("1999-09-09");

LocalDate d2 = LocalDate.parse("1999-09-09");

LocalDate d3 = LocalDate.of(1999, 9, 9);

LocalDate d4 = LocalDate.of(1999, 9, 9);

System.out.println((d1 == d2) + ":" + (d2 == d3) + ":" + (d3 == d4));

}

What is the result?

A : true:false:true

B : false:false:true

C : true:true:true

D : false:false:false

Answer: D

Page: 1 / 132

Total 660 Questions | Updated On: Jun 17, 2026

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