java构造器与setter方法_JAVA_编程开发_程序员俱乐部

class="java" name="code">
public class TestDemo20 {
	public static void main(String[] args){
		Test20 test = new Test20();
		test.setter(20);	
		System.out.println(test.getName());
		//test.setter("zhangsan");
		Test20 test1 = new Test20();
		test1.setter(30,"lisi");
	}
}
class Test20{
	private int num;
	private String name;
	public void setter(int num){ //setter方法设置num属性
		this.num = num;
	}	
	public void setter(String name){//setter方法重载设置name属性
		this.name = name;
	}
	public void setter(int num,String name){//setter方法重载同时设置num、name属性
		this.num = num;
		this.name = name;
	}
	public int getNum(){	//get方法取得num
		return num;
	}
	public String getName(){	//get方法取得name
		return name;
	}
}

public class TestDemo21 {
	public static void main(String[] args){
		Test21 test = new Test21();		
	}
}
class Test21{
	private int num;
	private String name;
	public Test21(){}	//Test21无参构造器
	public Test21(int num,String name){	//Test21
		this.num = num;
		this.name = name;
	}
	public int getNum(){
		return this.num;
	}
	public String getName(){
		return this.name;
	}
}