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Exam Code: 1Z0-829
Exam Questions: 660
Java SE 17 Developer
Updated: 19 Feb, 2026
Question 1

Question ID: UK8297789
Given code of Test.java file:
package com.examtest.ocp;
 
import java.util.ArrayList;
import java.util.List;
 
public class Test {
    public static void main(String[] args) {
        Boolean [] arr = new Boolean[2];
        List<Boolean> list = new ArrayList<>();
        list.add(arr[0]);
        list.add(arr[1]);
        
        if(list.remove(0)) {
            list.remove(1);
        }
        
        System.out.println(list);
    }
}
What is the result?

Options :
Answer: C
Question 2

Question ID: UK8298581
Given the code fragment:
String txt = "an";
System.out.println(txt.split("an").length);
What is the result?

Options :
Answer: A
Question 3

Question ID: UK8294673
Consider below code of Test.java file:
package com.examtest.ocp;
 
abstract class Log {
    abstract long count(); //Line n1
    abstract Object get(); //Line n2
}
 
class CommunicationLog extends Log {
    int count() { //Line n3
        return 100;
    }
    
    String get() { //Line n4
        return "COM-LOG";
    }
}
 
public class Test {
    public static void main(String[] args) {
        Log log = new CommunicationLog(); //Line n5
        System.out.print(log.count());
        System.out.print(log.get());
    }
}
Which of the following statement is correct?

Options :
Answer: A
Question 4

Question ID: UK8295901
Consider below code:
package com.examtest.ocp;
 
public class Test {
    static Double d1;
    static int x = d1.intValue();
    
    public static void main(String[] args) {
        System.out.println("HELLO");
    }
}
On execution, does Test class print HELLO on to the console?

Options :
Answer: B
Question 5

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
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