IoT JAVA 0811 - TestJava.java

public class TestJava {
    int carSpeed;
    public TestJava() {
        System.out.println("default");
        carSpeed = 100;
        System.out.println("default : "+carSpeed);
    }
    public TestJava(int carSpeed) {
        System.out.println("speed input");
        this.carSpeed = carSpeed;
        System.out.println("overload : "+carSpeed);
    }
    public void speedUp(){
        carSpeed += 10;
        System.out.println("Car Speed : "+carSpeed);
    }
    public void speedUp(int carSpeed){
        this.carSpeed += carSpeed;
        System.out.println("Car Speed : "+this.carSpeed);
    }
    public static void main(String args[]){
        TestJava obj1 = new TestJava();
        TestJava obj2 = new TestJava(150);
        obj2.speedUp();
        obj2.speedUp(30);
    }
}