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EXPERTY DESIGNED 1Z0-829 PRACTICE TEST

Oracle 1Z0-829 Exam Questions
Total Questions: 660
Java SE 17 Developer
Updated On: Dec 07, 2025
Page : 1-66
Question 1

Question ID: UK8298581
Given the code fragment:
String txt = "an";
System.out.println(txt.split("an").length);
What is the result?

Options :
Answer: A
Question 2

Question ID: UK8298141
Consider below 3 statements:
1. System.out.println(700 * Math.pow(2, -2));
2. System.out.println(700 * (1 / 4));
3. System.out.println(7 * Math.ceil(24.80));
Do all the three statements produce same output?

Options :
Answer: B
Question 3

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 4

Question ID: UK8295123
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) {
        List<Character> list = new ArrayList<>();
        list.add(0, 'E');
        list.add('X');
        list.add(1, 'P');
        list.add(3, 'O');
        
        if(list.contains('O')) {
            list.remove('O');
        }
        
        for(char ch : list) {
            System.out.print(ch);
        }
    }
}
What is the result?

Options :
Answer: B
Question 5

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
Page : 1-66

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