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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: 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 2

Question ID: UK8298155
Following statement in a Java program compiles successfully:
student.report(course);
What can you say for sure?

Options :
Answer: C
Question 3

Question ID: UK8295913
Given code of Test.java file:
package com.examtest.ocp;
 
record Rectangle(double length, double width) {}
 
record Square(double side) extends Rectangle {}
 
public class Test {
    public static void main(String[] args) {
        Square sq = new Square(10.0);
        System.out.println(sq);
    }
}
What is the result?

Options :
Answer: A
Question 4

Question ID: UK8291549
Given code of Test.java file:
package com.examtest.ocp;
 
public class Test {
    private static void m(int i) {
        System.out.print(1);
    }
    
    private static void m(int i1, int i2) {
        System.out.print(2);
    }
    
    private static void m(char... args) {
        System.out.print(3);
    }
   
    public static void main(String... args) {
        m('A');
        m('A', 'B');
        m('A', 'B', 'C');
        m('A', 'B', 'C', 'D');
    }
}
What is the result?

Options :
Answer: C
Question 5

Question ID: UK8292410
Consider below code of Test.java file:
package com.examtest.ocp;
 
public class Test {
    public static void main(String[] args) {
        Boolean b = Boolean.valueOf("tRUe");
        switch(b) {
            case true:
                System.out.println("ONE");
            case false:
                System.out.println("TWO");
            default: 
                System.out.println("THREE");
        }
    }
}
What is the result of compiling and executing Test class?

Options :
Answer: D
Page : 1-66

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