Raj was asked to accept the phone number which has 10 digits, using the appropriate method of Scanner class. Which of the following statement he must choose?

1. Ob.nextInt()
2. Ob.nextDouble()
3. Ob.nextLong()
4. Ob.next().chatAt(0)

Answer the following:

(a) Scanner class method to accept a character.

(b) Jump statement which stops the execution of a construct.