急!!!!用Java编写一个程序：输入3个数，将它们按大小顺序输出．

import java.io.*;
import java.lang.*;
import java.util.StringTokenizer;
class array
{
public static void main(String args[])
{
StringTokenizer st=new StringTokenizer("10 20 30 40");
String s="";
int[] b=new int[10];
int Max=0,Min=0;
int count=0;
System.out.println("输入10个数字用空格隔开如:1 10 31 45 57 6 70 18 29 50");
try
{
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
s=in.readLine();
st=new StringTokenizer(s);
}
catch(Exception e)
{
System.out.print(e.getMessage());
}

while(st.hasMoreTokens())
{
b[count]=Integer.parseInt(st.nextToken());
count++;
}

Min=b[0];
for(int i=0;i<b.length;i++)
{
if(Max<b[i])
{
Max=b[i];
}

else if(Min>b[i])
{
Min=b[i];