入下列数据∶
String charVar;// 该变量用来接收输入的字符
System.out.print("请输入任意字符:");
Scanner sc = new Scanner(System.in);
int yingwen = 0;
int kongge = 0;
int shuzi = 0;
int qita = 0;
charVar = sc.next(); // 取输入的第一个字符
int i = 0;
while (i < charVar.length()) {
char c = charVar.charAt(i++);
if ((c >= 65 && c <= 90) || (c >= 97 && c <= 122)) {
yingwen++;
} else if (c == 32) {
kongge++;
} else if (c >= 48 && c <= 57) {
shuzi++;
} else {
qita++;
}
}
System.out.print("英文字母" + yingwen + "空格" + kongge + "数字" + shuzi + "其他"
+ qita);
C语言经典例子之统计英文、字母、空格及数字个数