Hi Friend,

To study the Wrapper Class,please visit the following link:

http://www.roseindia.net/java/wrapper-class/

Scanner Class:

The purpose of Scanner class is to read the integer,string,double,float values from the command prompt.

Example of Scanner class:

import java.util.*;

public class UserInput{
public static void main(String[]args){
System.out.print("Enter name:");
Scanner input=new Scanner(System.in);
String name=input.nextLine();
System.out.print("Enter age:");
int age=input.nextInt();
System.out.print("Enter percentage:");
double percent=input.nextDouble();

System.out.println("Your name is: "+name);
System.out.println("Your age is: "+age);
System.out.println("Your percentage is: "+percent);

}
}

Thanks