EXPERTY DESIGNED 1Z0-829 PRACTICE TEST

Oracle 1Z0-829 Exam Questions
Total Questions: 660
Java SE 17 Developer
Updated On: Feb 21, 2026
Page : 1-66
Question 1

Question ID: UK8297735
Given code of Test.java file:
package com.examtest.ocp;
 
public class Test {
    enum TrafficLight {
        private String message;
        GREEN("go"), AMBER("slow"), RED("stop");
        
        TrafficLight(String message) {
            this.message = message;
        }
        
        public String getMessage() {
            return message;
        }
    }
    
    public static void main(String[] args) {
        System.out.println(TrafficLight.AMBER.getMessage().toUpperCase());
    }
What is the result?

Options :
Answer: C

Question 2

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?

Options :
Answer: D

Question 3

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 4

Question ID: UK8297789
Given code of Test.java file:
package com.examtest.ocp;
 
import java.util.ArrayList;
import java.util.List;
 
public class Test {
    public static void main(String[] args) {
        Boolean [] arr = new Boolean[2];
        List<Boolean> list = new ArrayList<>();
        list.add(arr[0]);
        list.add(arr[1]);
        
        if(list.remove(0)) {
            list.remove(1);
        }
        
        System.out.println(list);
    }
}
What is the result?

Options :
Answer: C

Question 5

Given the course table:



Given the code fragment:


 

Options :
Answer: C

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