java 程序问题 eclipse

从键盘上循环读入一些字符，直到遇到！为止，输出这些字符中数字、字母的个数。
代码谁会啊 急啊 ···

package com.feg.accp;

import java.util.Scanner;

public class Test {


public static void main(String []agrs)
{

String sum="";
String temp="";

int sumNum=0;
int sumString=0;
do{
System.out.println("请输入字符串：") ;
Scanner input=new Scanner(System.in);

temp=input.next();

sum+=temp;
}while(!temp.equals("!"));

System.out.println("您输入的字符串为："+sum+"长度为："+sum.length());

char [] chars=sum.toCharArray();
for(int i=0;i<chars.length;i++)
{
int t=chars[i];
System.out.println(t);
if(t>=48&&t<=57)
{
sumNum++;

}
else
{
sumString++;
}
}



System.out.println("您输入的字符数为："+sumString);

System.out.println("您输入的数字数位："+sumNum);

}
}

public class test { public static void main( String[] args ) throws IOException { int a = 0, b = 0; while ( true ) { char c = (char) System.in.read(); if ( c == '!' ) break; if ( Character.isLetter( c ) ) ++a; else if ( Character.isDigit( c ) ) ++b; } System.out.println( "字母字符数：" + a ); System.out.println( "数字字符数：" + b ); } }