Q1. What is Scanner class used for ? when was it introduced in Java ?
Ans. Scanner class introduced in Java 1.5 for reading Data Stream from the imput device. Previously we used to write code to read a input using DataInputStream. After reading the stream , we can convert into respective data type using in.next() as String ,in.nextInt() as integer, in.nextDouble() as Double etc
Q2. Which interfaces are implemented by Scanner?
Ans.[, Closeable, AutoCloseable, Iterator<String>]
Q3. Which is the Parent Class of Scanner class?
Q4. What is the package name for Scanner class?