Classes and Objects

java class

public class Lightsaber {
  // properties
  private boolean isOn;
  private Color color;
  
  // constructor
  public Lightsaber(Color color) {
    this.isOn = false;
    this.color = color;
  }
  
  // getters
  public Color getColor() {
    return color;
  }
  public boolean getOnStatus() {
    return isOn;
  }
  
  // setters
  public void turnOn() {
    isOn = true;
  }
  public void turnOff() {
    isOn = false;
  }
}



// Implementation in main method:
public class test {
  public static void main(String[] args) {
    Lightsaber yoda = new Lightsaber(green);
    yoda.turnOn();
  }
}

Posted by: Guest on February-18-2020

// this might help you understand how classes work public class MathTest { public static void main(String[] args) { class MathAdd { int num1; int num2; public int addNumbers() { int addThemUp = num1 + num2; return addThemUp; } } MathAdd addition = new MathAdd(); // create a new instance of the class // you can access variables from the class addition.num1 = 10; addition.num2 = 20; // and use the method from the class to add them up System.out.println(addition.addNumbers()); } }

// Example : TestClass (Can be predefined or user-defined) public class TestClass { // properties private int id = 111; // constructor public TestClass(){ super(); } // method public void test(){ // some code here } }

class Car { string color = "red"; int maxSpeed = 200; static void Main(string[] args) { Car myObj = new Car(); Console.WriteLine(myObj.color); Console.WriteLine(myObj.maxSpeed); } }

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