package javaapplication7;
class Yuangong{
private String Xm;
private String bm;
private int xs;
private double gh;
public Yuangong(double hg){
System.out.println(getgh());
}
public Yuangong(double hg,String Xm){
System.out.println(getgh()+getXm());
}
public Yuangong( ){
System.out.println("  a");
}
public Yuangong(double hg,String xm,int xs,String bm){
System.out.println(getgh()+getXm()+getxs()+getgh());
}
public String getXm(){
return Xm;
}public void getXm(String Xm){
this.Xm=Xm;
}
public String getbm(){
return bm;
}public void getbm(String bm){
this.bm=bm;
}
public int getxs(){
return xs;
}public void getxs(int xs){
this.xs=xs;
}
public double getgh(){
return gh;
}public void getgh(double gh){
this.gh=gh;
}
}
public class Main {
    public static void main(String[] args) {
       Yuangong s=new Yuangong();
       s.setXm("xiaosan");
       s.setgh(01.0);
       s.setbm("erhaobumen");
       s.setxs(10000);
       s.Yuangong();
         s.Yuangong( s.setgh(01.0));
    }

}

Yuangong类中漏了写set方法

e   粗心了  唉   版主感谢了

public void setbm(String bm){  //把get改为set
this.bm=bm;
}