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Free Oracle 1Z0-829 Exam Questions

Become Oracle Certified with updated 1Z0-829 exam questions and correct answers

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Total 660 Questions | Updated On: Dec 06, 2025
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Question 1

Question ID: UK8291153
Given code of Test.java file:
package com.examtest.ocp;
 
import java.util.ArrayList;
import java.util.List;
 
class Person {
    private String name;
    private int age;
    
    Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
    
    public String toString() {
        return "Person[" + name + ", " + age + "]";
    }
    
    public boolean equals(Person obj) {
        if(obj instanceof Person) {
            Person person = (Person)obj;
            if(this.name.equals(person.name) && this.age == person.age) {
                return true;
            }
        }
        return false;
    }
}
 
public class Test {
    public static void main(String[] args) {
        List<Person> persons = new ArrayList<>();
        persons.add(new Person("Liam", 25));
        persons.add(new Person("Liam", 27));
        persons.add(new Person("Liam", 25));
        persons.add(new Person("Liam", 25));
        
        persons.remove(new Person("Liam", 25));
        
        for(Person person : persons) {
            System.out.println(person);
        }
    }
}
What is the result?

Answer: D
Question 2

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?

Answer: D
Question 3

Question ID: UK8292478
Given code of Test.java file:
package com.examtest.ocp;
 
import java.util.Arrays;
 
public class Test {
    public static void main(String[] args) {
        int [] array1 = {};
        int [] array2 = {100, 200};
        System.out.print(Arrays.compare(array1, array2));
        System.out.print(Arrays.mismatch(array1, array2));
    }
}
What is the result?

Answer: A
Question 4

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?

Answer: A
Question 5

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?

Answer: B
Page:    1 / 132      
Total 660 Questions | Updated On: Dec 06, 2025
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