how to get the number from a string in in java code example

Example 1: how to get int from string java

// You will receive an error if there are non-numeric characters in the String.
String num = "5";
int i = Integer.parseInt(num);

Example 2: java get number out of string

for(int i=0; i<yourString.length();i++) {
  if(Character.isDigit(yourString.charAt(i))) {
    // Do something with the number
    // For example convert it to int:
    int yourNumber = Integer.parseInt(String.valueOf(yourString.charAt(i)));
  }
}