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EXPERTY DESIGNED 1Z0-829 PRACTICE TEST

Oracle 1Z0-829 Exam Questions
Total Questions: 660
Java SE 17 Developer
Updated On: Jan 13, 2026
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

Given the content of the in. tart file:

23456789

and the code fragment:




What is the content of the out .txt file? 

Options :
Answer: D
Question 3

Question ID: UK8296394
Consider below code of Test.java file:
package com.examtest.ocp;
 
public class Test {
    public static void main(String[] args) {
        var sb = new StringBuilder();
        System.out.println(sb.append("").append("").append("").length());
    }
}
What is the result?

Options :
Answer: A
Question 4

Question ID: UK8298152
Consider below code:
package com.examtest.ocp;
 
import java.time.LocalDate;
 
public class Test {
    public static void main(String [] args) {
        LocalDate d1 = LocalDate.parse("1999-09-09");
        LocalDate d2 = LocalDate.parse("1999-09-09");
        LocalDate d3 = LocalDate.of(1999, 9, 9);
        LocalDate d4 = LocalDate.of(1999, 9, 9);
        System.out.println((d1 == d2) + ":" + (d2 == d3) + ":" + (d3 == d4));
    }
}
What is the result?

Options :
Answer: D
Question 5

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

Options :
Answer: C
Page : 1-66

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