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Free Oracle 1Z0-829 Exam Questions

Absolute Free 1Z0-829 Exam Practice for Comprehensive Preparation 

  • Oracle 1Z0-829 Exam Questions
  • Provided By: Oracle
  • Exam: Java SE 17 Developer
  • Certification: Oracle Java
  • Total Questions: 660
  • Updated On: Jan 13, 2026
  • Rated: 4.9 |
  • Online Users: 1320
Page No. 1 of 132
   
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  • Question 1
    • Question ID: UK8298130
      Consider below code of Test.java file:
      package com.examtest.ocp;
       
      class A {
          public String toString() {
              return null;
          }
      }
       
      public class Test {
          public static void main(String [] args) {
              String text = null;
              text = text + new A(); //Line n1
              System.out.println(text.length()); //Line n2
          }
      }
      What is the result?

      Answer: A
  • Question 2
    • Question ID: UK8292097
      Below is the code of Test.java file:
      package com.examtest.ocp;
       
      import java.util.*;
       
      public class Test {
          public static void main(String[] args) {
              var list = new ArrayList<>(); //Line n1
              list.add("TAKE");
              list.add("THE");
              list.add("RISK");
       
              System.out.println(String.join(".", list)); //Line n2
          }
      }
      What is the result?

      Answer: B
  • Question 3
    • Given code of Test.java file:
      package com.examtest.ocp;

      public class Test {
          private static String print(String... args) {
              return String.join("-", args); //Line n1
          }
          
          private static Object print(Object... args) {
              String str = "";
              for(Object obj : args) {
                  if(obj instanceof String) { //Line n2
                      str += (String) obj; //Line n3
                  }
              }
              return str; //Line n4
          }
          
          public static void main(String... args) {
              Object obj1 = new String("SPORT"); //Line n5
              Object obj2 = new String("MAD"); //Line n6
              System.out.println(print(obj1, obj2)); //Line n7
          }
      }
      What is the result?

      Answer: A
  • Question 4
    • Question ID: UK8293374
      Which of the following are Java Exception classes?
      Choose 3 options.

      Answer: A,C,D
  • Question 5
    • Question ID: UK8295941
      Given code of TestStudent.java file:
      package com.examtest.ocp;
       
      class Student {
          String name;
          int age;
          boolean result;
          double height;
      }
       
      public class TestStudent {
          public static void main(String[] args) {
              var stud = new Student(); //Line n1
              System.out.println(stud.name + stud.height + stud.result + stud.age); //Line n2
          }
      }
      What is the result?

      Answer: A
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