package demo2;
/**
 * 使用構造器依賴注入
 * @author tangl
 *
 */
public class HelloWorld implements HelloWorldInterface{
	private String name;
	private int age;
	
	
	public HelloWorld(int age) {
		this.age = age;		
	}	
	public HelloWorld(String name) {
		this.name = name;		
	}
	public void sayHello() {
		System.out.println("Hello "+name+" !");		
	}



}