public class Number{
      void sort(int a,int b,int c){
          int count=0;
          int temp=0;
          if(b<a){
            temp=a;
            a=b;
            b=temp;
            count++;
            System.out.println(a,b,c);
            }
          if(c<a){
            temp=a;
            a=c;
            c=temp;
            count++;
            System.out.println(a,b,c);
            }
          if(b<c){
            temp=c;
            c=b;
            b=temp;
            count++;
            System.out.println(a,b,c);
            }
          if(count==0){
            System.out.println(a,b,c);
            }
         
          }
      }
这是一个排序的类，好像哪里出错了，但是我看不出，求各位大神指点

这是主类，没有问题
import java.util.Scanner;
public class Exam3_1{
      public static void main(String args[]){
          Scanner reader=new Scanner(System.in);
          System.out.println("Please input three number:");
          int x=reader.nextInt();
          int y=reader.nextInt();
          int z=reader.nextInt();
          Number number=new Number();
          number.sort(x,y,z);
          }
      }