trycatch.java

import java.lang.Math; // headers MUST be above the first class

// one class needs to have a main() method
public class HelloWorld
{
  // arguments are passed using the text field below this editor
  public static void main(String[] args)
  {
    Integer number = TryParseInt("85");
    System.out.print(number + " is a good value\n");
    
    number = TryParseInt("This is not a number");
    if (number == null)
    	System.out.print("Nice try! Wrong number :)");
    
  }
  
  public static Integer TryParseInt(String value) 
  {
    try
    {
      return Integer.parseInt(value);
    } 
    catch (NumberFormatException ex) 
    {
      return null;
    }
  }
  
}