How to take inputs in Java Describe with 2 simple programs

Prog 1:

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Save as input1.java

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import java.util.Scanner;

class input1

{           public static void main(String args[])

            {

                        Scanner scan = new Scanner(System.in);

                        String s = scan.next();

                        System.out.println("Enter input="+s);

                        int i = scan.nextInt();

                        System.out.println("Enter input="+i);

            }

}

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Prog2:

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Save as input2.java

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import java.util.Scanner;

class input2

{

   public static void main(String args[])

   {

      int a;

      float b;

      String s;

      Scanner in = new Scanner(System.in);

      System.out.println("Enter a string");

      s = in.nextLine();

      System.out.println("You entered string "+s);

      System.out.println("Enter an integer");

      a = in.nextInt();

      System.out.println("You entered integer "+a);

      System.out.println("Enter a float");

      b = in.nextFloat();

      System.out.println("You entered float "+b);  

   }

}

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You can now read in different kinds of input data that the user enters. The Scanner class supports getting primitives such as int, byte, short, long in addition to getting strings. Here are some methods that are available through the Scanner class:

• Read a byte - nextByte()
• Read a short - nextShort()
• Read an int - nextInt()
• Read a long - nextLong()
• Read a float - nextFloat()
• Read a double - nextDouble()
• Read a boolean - nextBoolean()
• Read a complete line - nextLine()
• Read a word - next()