Java — Constructors

Default constructor

public class Car {
    String brand;
    
    public Car() {
        brand = "Unknown";
    }
}

Parameterized constructor

public class Car {
    String brand;
    int year;
    
    public Car(String brand, int year) {
        this.brand = brand;
        this.year = year;
    }
}

Constructor overloading

public class Car {
    public Car() { }
    public Car(String brand) { this.brand = brand; }
    public Car(String brand, int year) { this.brand = brand; this.year = year; }
}

Mini Practice

1. Create default constructor
2. Add parameters
3. Use overloading
4. Practice this keyword

Up Next

Continue with Modifiers - Access modifiers.