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Exam Code: 1Z0-829
Exam Questions: 660
Java SE 17 Developer
Updated: 01 Apr, 2026
Question 1

Question ID: UK8296869
Given code of Test.java file:
package com.examtest.ocp;
 
class Parent {
    int var = 1000; // Line n1
 
    int getVar() {
        return var;
    }
}
 
class Child extends Parent {
    private int var = 2000; // Line n2
 
    int getVar() {
        return super.var; //Line n3
    }
}
 
public class Test {
    public static void main(String[] args) {
        Child obj = new Child(); // Line n4
        System.out.println(obj.var); // Line n5
    }
}
There is a compilation error in the code.
Which three modifications, done independently, print 1000 on to the console?

Options :
Answer: A,B,D
Question 2

Question ID: UK8291924
Given code of Test.java file:
package com.examtest.ocp;
 
import java.time.*;
 
public class Test {
    public static void main(String [] args) {
        Period period = Period.ofWeeks(100);
        System.out.println(period);
    }
}
What is the result?

Options :
Answer: C
Question 3

Question ID: UK8295506
Given code of Test.java file:
package com.examtest.ocp;
 
public class Test {
    public static void main(String[] args) {
        String[] arr = { "L", "I", "V", "E" }; //Line n1
        int i = -2;
 
        if (i++ == -1) { //Line n2
            arr[-(--i)] = "F"; //Line n3
        } else if (--i == -2) { //Line n4
            arr[-++i] = "O"; //Line n5
        }
 
        System.out.println(String.join("", arr)); //Line n6
    }
}
What is the result?

Options :
Answer: A
Question 4

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?

Options :
Answer: C
Question 5

Question ID: UK8297257
Given code of Test.java file:

package com.examtest.ocp;
 
public class Test {
    public static void main(String[] args) {
        int x = 2;
        switch (x) {
            default:
                System.out.println("Still no idea what x is");
            case 1:
                System.out.println("x is equal to 1");
                break;
            case 2:
                System.out.println("x is equal to 2");
                break;
            case 3: 
                System.out.println("x is equal to 3");
                break;
        }
    }
}
What is the result?

Options :
Answer: A
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