package misc; public class CheckNumberInString { public static void main(String[] args) { String str = "Lorem Ipsum has been the industry's standard dummy text ever since the 1500s."; Boolean flag = false; for(int i = 0; i < str.length(); i++) { flag = Character.isDigit(str.charAt(i)); if(flag) { System.out.println(str + "\n ==> contains number"); break; } } } }