传值不成功,该如何解决

import java.util.*;public class Beltandmethod {        private static final int old = 20;//年纪        private String name ;//姓名        private int height ;//身高    private int weight ; //体重]        Scanner sc = new Scanner (System.in);        public void input (String name,int height,int weight){        this.name=name;        this.height=height;        this.weight=weight;        System.out.println("请输入姓名:");        name=sc.next();        System.out.println("请输入身高:");        height=sc.nextInt();        System.out.println("请输入体重:");        weight=sc.nextInt();    }        public void show (){        System.out.println("姓名是:"+name+" 身高是:"+height+" 体重是:"+weight+" 年龄是:"+old);    }    /**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        Beltandmethod center =new Beltandmethod ();        String name = "";        int height= 0 ;        int weight = 0 ;        center.input(name, height, weight);        center.show();    }}

    public void input (String name,int height,int weight){        this.name=name;        this.height=height;        this.weight=weight;        System.out.println("请输入姓名:");        this.name=sc.next();        System.out.println("请输入身高:");        this.height=sc.nextInt();        System.out.println("请输入体重:");        this.weight=sc.nextInt();    }
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Java code
public void input (String name,int height,int weight){        System.out.println("请输入姓名:");        name=sc.next();        System.out.println("请输入身高:");        height=sc.nextInt();        System.out.println("请输入体重:");        weight=sc.nextInt(); //先把值读进来，在赋值嘛        this.name=name;        this.height=height;        this.weight=weight;    }
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探讨


你没加this
就是相当于把传进来的值给修改了，没有修改对象的值～～

------解决方案--------------------
探讨


你没加this
就是相当于把传进来的值给修改了，没有修改对象的值～～