overloadconstructor.java

来自「java可以实现一些小程序的编写」· Java 代码 · 共 30 行

//验证构造方法的重载
class OverLoadConstructor{
	OverLoadConstructor()
	{
      		System.out.println("default Constructor.");
	}
	OverLoadConstructor(int i)
	{
		System.out.println("Constructor has a  int parameter. "+i);
	}
	OverLoadConstructor(float i)
	{
		System.out.println("Constructor has a  float parameter. "+i);
	}

	void OverLoadConstructor(int i)
	{
		System.out.println("the method  has a  int parameter.   "+i);
	}
   public static void main(String args[])
   {
	OverLoadConstructor object1=new OverLoadConstructor();//创建对象
        OverLoadConstructor object2=new OverLoadConstructor(2);           
   	OverLoadConstructor object3=new OverLoadConstructor(3.000f); //不加 f 是错误的
	object3.OverLoadConstructor( 300);//对象的方法调用
        System.out.println("创建对象再调用一般方法：");
        new OverLoadConstructor(3.0f).OverLoadConstructor(3000);
    }
}