题目:输入一行字符,分别统计出其中英文字母、空格、
数字和其它字符的个数。
import java.util.*;
public class lianxi07 {
public static void main(String[] args){
int digital = 0;
int character = 0;
int other = 0;
int blank = 0;
char[] ch = null;
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
--------------------------------------------下面的逻辑不太理解-----------------------------------------------
ch = s.toCharArray();
for(int i=0; i<ch.length; i++) {
if(ch >= '0' && ch <= '9') {
digital ++;
} else if((ch >= 'a' && ch <= 'z') || ch > 'A' && ch <= 'Z') {
character ++;
} else if(ch == ' ') {
blank ++;
} else {
other ++;
}
}
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System.out.println("数字个数: " + digital);
System.out.println("英文字母个数: " + character);
System.out.println("空格个数: " + blank);
System.out.println("其他字符个数:" + other );
}
}
慕田峪6141110
慕田峪6141110
慕的地6079101
lijikai1937
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