java programming language methods

Question 12

What is isDigit();

Ans

It work on single character. This function return true or false. If user enter digit it returns true otherwise it returns false.

Question 13

Give example of  isDidit();

Ans

Example     Character. isDigit(g)    it return false    Character.isDigit(3)    it return true

Question 14

What is isLetter();

Ans

It work on single character. This function return true or false. If user enter chracter it returns true otherwise it returns false

Question 15

Give example of isLetter();

Ans

Example      Character.isLetter(g)    it return false    Character .isLetter(3)    it return true