for programming

1. •Scanner class is one of the class of Java
which provides the methods to get inputs.
•Scanner class is present in java.util package
so we import this package in our program.
•We first create an object of Scanner class and
then we use the methods of Scanner class.

2. Scanner a = new Scanner(System.in);
Following are methods of Scanner class:
•next( ) to input a string
•nextByte() to input a byte value
•nextInt( ) to input an integer
•nextFloat( ) to input a float
•nextLong( ) for Long Values
•nextDouble() for double values

3. import java.util.Scanner;
class GetInput {
public static void main(String args[]) {
int a;
Scanner in = new Scanner(System.in);
System.out.println("Enter an integer");
a = in.nextInt();
System.out.println("You entered integer "+a);
} }

4. import java.util.Scanner;
class GetInput {
public static void main(String args[]) {
float b;
Scanner in = new Scanner(System.in);
System.out.println("Enter a float");
b = in.nextFloat();
System.out.println("You entered float "+b);
} }

5. import java.util.Scanner;
class GetInput {
public static void main(String args[]) {
String s;
Scanner in = new Scanner(System.in);
System.out.println("Enter a string");
s = in.nextLine();
System.out.println("You entered string"+s);
} }