Check if a character representing a number : 字符 « 数据类型 « Java

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Java » 数据类型 » 字符屏幕截图 
Check if a character representing a number
  

public class Main {
  public static void main(String[] args) {
    String numbers = "1234567890";
    for (int i = 0; i < numbers.length(); i++) {
      if (Character.isDigit(numbers.charAt(i))) {
        System.out.println(numbers.charAt(i" is a number.");
      else {
        System.out.println(numbers.charAt(i" not a number.");
      }
    }
  }
}

   
    
  
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