Enter the values through keyboard

Enter the values through keyboard: core java Programs

We have two ways to give input through keyboard

1.    Using BufferedReader class

2.    Using Scanner class

Using BufferedReader class

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class Test {

               public static void main(String[] args)throws IOException

               {

                               BufferedReader br=new BufferedReader(new                                                                                    InputStreamReader(System.in));

                               System.out.println("Enter name");

                               String name=br.readLine();

                               System.out.println("Enter Id");

                               int id=Integer.parseInt(br.readLine());

                               System.out.println("Enter Salary");

                               double salary=Double.parseDouble(br.readLine());

                               System.out.println("Enter Section");

                               char section=(char)br.read();

                               System.out.println("Name : "+name+" Id : "+id);

                               System.out.println("Salary : "+salary+" Section : "+section);

               }

}

Output:-

D:\Java>javac Test.java

D:\Java>java Test

Enter name

Narendar

Enter Id

1214

Enter Salary

20000

Enter Section

A

Name : Narendar Id : 1214

Salary : 20000.0 Section : A

Using Scanner class

import java.io.IOException;

import java.util.Scanner;

public class Test {

               public static void main(String[] args)throws IOException 

               {

                               Scanner sc=new Scanner(System.in);

                               System.out.println("Enter name");

                               String name=sc.nextLine();

                               System.out.println("Enter Id");

                               int id=sc.nextInt();

                               System.out.println("Enter Salary");

                               double salary=sc.nextDouble();

                               System.out.println("Enter Section");

                               String section=sc.next();

                               System.out.println("Name : "+name+" Id : "+id);

                               System.out.println("Salary : "+salary+" Section : "+section);

               }

}

Output:-

D:\Java>javac Test.java

D:\Java>java Test

Enter name

Durga

Enter Id

1212

Enter Salary

20000

Enter Section

B

Name : Durga Id : 1212

Salary : 20000.0 Section : B