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: Jan 06, 2026

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Question 1

Question ID: UK8294682

Consider below codes of 3 java files:

//Shrinkable.java

package com.examtest.ocp;

public interface Shrinkable {

public static void shrinkPercentage() {

System.out.println("80%");

}

//AntMan.java

package com.examtest.ocp;

public class AntMan implements Shrinkable { }

//Test.java

package com.examtest.ocp;

public class Test {

public static void main(String[] args) {

AntMan.shrinkPercentage();

}

Which of the following statements is correct?

A : There is a compilation error in Shrinkable.java file

B : There is a compilation error in AntMan.java file

C : There is a compilation error in Test.java file

D : There is no compilation error and on execution, Test class prints 80% on to the console

Answer: C

Question 2

Question ID: UK8298194

Given code of Test.java file:

package com.examtest.ocp;

public class Test {

public static void main(String[] args) {

short [] args = new short[]{50, 50};

args[0] = 5;

args[1] = 10;

System.out.println("[" + args[0] + ", " + args[1] + "]");

}

What is the result?

A : Compilation error

B : An exception is thrown at runtime

C : [50, 50]

D : [5, 10]

Answer: A

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

Given:

Which two method invocation execute?

A : IFace myclassobj = new Myc ();myclassObj.m3 ();

B : Ifnce.m3 ();

C : iFace mucloassObj = new Myc ();myClassObj.m4();

D : new MyC() .m2 ();

E : IFace .,4():

F : IFace.m2();

Answer: D,E

Question 5

Given:

What is the result?

A : MbMC

B : Mb

C : Mb

D : MA

E : mA

Answer: E

Page: 1 / 132

Total 660 Questions | Updated On: Jan 06, 2026

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