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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: Apr 29, 2026
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Question 1

Question ID: UK8297700
Consider below code of Test.java file:
package com.examtest.ocp;
 
class Parent {
    int i = 10;
    Parent(int i) {
        super();
        this.i = i;
    }
}
 
class Child extends Parent {
    int j = 20;
    
    Child(int j) {
        super(0);
        this.j = j;
    }
    
    Child(int i, int j) {
        super(i);
        this(j);
    }
    
}
 
public class Test {
    public static void main(String[] args) {
        Child child = new Child(1000, 2000);
        System.out.println(child.i + ":" + child.j);
    }
}
What is the result?

Answer: C
Question 2

Question ID: UK8292860
Given code of Test.java file:
package com.examtest.ocp;
 
class Car {
    void speed(Byteval) { //Line n1
        System.out.println("DARK"); //Line n2
    } //Line n3
 
    void speed(byte... vals) {
        System.out.println("LIGHT");
    }
}
 
public class Test {
    public static void main(String[] args) {
        byte b = 10; //Line n4
        new Car().speed(b); //Line n5
    }
}
Which of the following needs to be done so that LIGHT is printed on to the console?

Answer: B
Question 3

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 4

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 5

Question ID: UK8291525
Below is the code of TestSellable.java file:
package com.examtest.ocp;
 
interface Sellable {
    double getPrice();
}
 
public class TestSellable {
    private static void printPrice(Sellable sellable) {
        System.out.println(sellable.getPrice());
    }
 
    public static void main(String[] args) {
        /*INSERT*/
    }
}
Which of the following options can replace /*INSERT*/ such that there are no compilation errors?
Choose 3 options.

Answer: A,D
Page:    1 / 132      
Total 660 Questions | Updated On: Apr 29, 2026
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