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Exam Code: 1Z0-829
Exam Questions: 660
Java SE 17 Developer
Updated: 24 Sep, 2026
Question 1

Question ID: UK8297722
Given code of Test.java file:
package com.examtest.ocp;
 
interface Rideable {
    void ride(String name);
}
 
class Animal {}
 
class Horse extends Animal implements Rideable {
    public void ride(String name) {
        System.out.println(name.toUpperCase() + " IS RIDING THE HORSE");
    }
}
 
public class Test {
    public static void main(String[] args) {
        Animal horse = new Horse();
        /*INSERT*/
    }
}
Which of the following options, if used to replace /*INSERT*/, will compile successfully and on execution will print EMMA IS RIDING THE HORSE on to the console?
Choose 4 options.

Options :
Answer: A,C
Question 2

Question ID: UK8291525
Below is the code of TestSellable.java file:
package com.examtest.ocp;
 
interface Sellable {
    double getPrice();
}
 
public class TestSellable {
    private static void printPrice(Sellable sellable) {
        System.out.println(sellable.getPrice());
    }
 
    public static void main(String[] args) {
        /*INSERT*/
    }
}
Which of the following options can replace /*INSERT*/ such that there are no compilation errors?
Choose 3 options.

Options :
Answer: A,D
Question 3

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?

Options :
Answer: A
Question 4

Question ID: UK8296889
Given code of Test.java file:
package com.examtest.ocp;
 
class GrandParent {}
 
class Parent extends GrandParent {}
 
class Child extends Parent {}
 
class GrandChild extends Child {}
 
public class Test {
    public static void main(String... args) {
        GrandParent obj = new Child();
        if(!(obj instanceof GrandChild gc)) {
            System.out.print("Not a GrandChild");
            /*INSERT-1*/
        } 
        /*INSERT-2*/
        System.out.println(gc); //Line n2
    }
}
And the statements:
1. Above code causes compilation error
2. Above code compiles successfully and prints: Not a GrandChild
3. To resolve compilation error, replace /*INSERT-1*/ with return;
4. To resolve compilation error, replace /*INSERT-2*/ with else
How many of the above statements is/are correct?

Options :
Answer: C
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?

Options :
Answer: C
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