解题思路:
注意事项:
参考代码:
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in=new Scanner(System.in); String n=in.nextLine(); char a[]=n.toCharArray(); int word=0,digit=0,space=0,other=0; for(int i=0;i<a.length;i++) { if(Character.isLetter(a[i])) word++; else if(Character.isDigit(a[i])) digit++; else if(a[i]==' ') space++; else other++; } System.out.print(word+" "+digit+" "+space+" "+other); } }
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