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EXPERTY DESIGNED 1Z0-829 PRACTICE TEST

Oracle 1Z0-829 Exam Questions
Total Questions: 660
Java SE 17 Developer
Updated On: Nov 24, 2025
Page : 1-66
Question 1

Question ID: UK8297735
Given code of Test.java file:
package com.examtest.ocp;
 
public class Test {
    enum TrafficLight {
        private String message;
        GREEN("go"), AMBER("slow"), RED("stop");
        
        TrafficLight(String message) {
            this.message = message;
        }
        
        public String getMessage() {
            return message;
        }
    }
    
    public static void main(String[] args) {
        System.out.println(TrafficLight.AMBER.getMessage().toUpperCase());
    }
} 
What is the result?

Options :
Answer: C
Question 2

Question ID: UK8295123
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) {
        List<Character> list = new ArrayList<>();
        list.add(0, 'E');
        list.add('X');
        list.add(1, 'P');
        list.add(3, 'O');
        
        if(list.contains('O')) {
            list.remove('O');
        }
        
        for(char ch : list) {
            System.out.print(ch);
        }
    }
}
What is the result?

Options :
Answer: B
Question 3

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?

Options :
Answer: B
Question 4

Question ID: UK8293374
Which of the following are Java Exception classes?
Choose 3 options.

Options :
Answer: A,C,D
Question 5

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
Page : 1-66

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