multifunctiondemo.java

java2应用开发指南第一版

//MultiFunctionDemo.java
class MultiFunction
{
	int a,b;
  //成员方法一
   int memberFunction ()
   {
		return a+b;
   }
  //成员方法二
   int memberFunction (int c)
   {
		return a+b+c;
   }
  //成员方法三
   int memberFunction (int c,int d)
   {
		return a+b+c+d;
   }
  //构造方法
   MultiFunction (int a,int b)
   {
		this.a = a;
       this.b = b;
   }
}
public class MultiFunctionDemo
{
	public static void main(String args[])
	{
       //实例化
		MultiFunction  aMultiFunction = new MultiFunction (1,2);
       //调用成员方法
       int a = aMultiFunction.memberFunction();
		System.out.println(a);
       //调用成员方法
       int b = aMultiFunction.memberFunction (3);
		System.out.println(b);
       //调用成员方法
       int c = aMultiFunction.memberFunction (3,4);
		System.out.println(c);
	}
}