写一个类,在该类 main 方法中,从键盘接收一行字符,分别统计出其中英文字母、空格、数字和其它字符的个数。
该回答引用chatgpt
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入一行字符:");
String str = scanner.nextLine();
int letterCount = 0;
int spaceCount = 0;
int numberCount = 0;
int otherCount = 0;
char[] chars = str.toCharArray();
for (int i = 0; i < chars.length; i++) {
if (Character.isLetter(chars[i])) {
letterCount++;
} else if (Character.isSpaceChar(chars[i])) {
spaceCount++;
} else if (Character.isDigit(chars[i])) {
numberCount++;
} else {
otherCount++;
}
}
System.out.println("英文字母个数:" + letterCount);
System.out.println("空格个数:" + spaceCount);
System.out.println("数字个数:" + numberCount);
System.out.println("其它字符个数:" + otherCount);
}