属性赋值的三种方式

1、通过set访问器

package com.zaokewang;
// 定义Persion类
public class Persion {
    private String name;
	
	public void setName(String name) {
		this.name = name;
	}
}
// 入口类
public class M {
	public static void main(String[] args) {
		Persion persion = new Persion();
		persion.setName = 'jack';
	}
}

2、通过构造方法

package com.zaokewang;
// 定义Persion类
public class Persion {
    private String name;
	
	public Persion(String name) {
		this.name = name;
	}
}
// 入口类
public class M {
	public static void main(String[] args) {
		Persion persion = new Persion("jack");
	}
}

3、通过接口

// 定义接口
public interface Rule {
	public void inputName(String name);
}
// 实现接口
public class MRule implements Rule {
	private String name;
	public void inputName(String name) {
		this.name = name;
	}
}
// 调用接口类
// 入口类
public class M {
	public static void main(String[] args) {
		MRule persion = new MRule();
		persion.inputName("jack");
	}
}