19. Tricky Rules



Answer:
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Tricky Rules





    









    





    

    

    

    

    

        
The method
public String substring(int beginIndex )
creates a new string. The original string is not changed. There are two tricky rules:
  1. If beginIndex is exactly equal to the length of the original string, a substring is created, but it contains no characters (it is an empty string)
  2. If beginIndex is greater than the length of the original string, or a negative value, an IndexOutOfBoundsException is thrown (and for now, your program crashes).





Question 19:
What string is formed by the following expressions? (click on the button when you have decided)
    ExpressionNew StringComment
    String snake = "Rattlesnake";
    snake.substring(6)
    snake.substring(0)
    snake.substring(10)
    snake.substring(11)
    snake.substring(12)