textzzd.java

读取文件中的所有内容并判断相关内容的...。

import java.io.*;
public class Textzzd {
public static void main(String[] args)throws IOException{
	BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));
	 System.out.println("请输入字符:");
	 String input=reader.readLine(); 
	String a1=input.replaceAll("[a-z]", "");
	System.out.println("小写字母为:"+(input.length()-a1.length()));
	String a2=a1.replaceAll("[A-Z]", "");
	System.out.println("大写字母为:"+(a1.length()-a2.length()));
	String a3=a2.replaceAll("[0-9]", "");
	System.out.println("数字为:"+(a2.length()-a3.length()));
	System.out.println("其他的符号为:"+a3.length());
	
}

}