Java Program to Get Input from User

In this post we will learn how to get input from user in java.

Java User Input:

The Scanner class is used to get user input, and it is found in java.util package.

we use the scanner class, to create an object of the scanner class and use any of the available methods found in the Scanner class documentation. In our example, we will use the nextLine() method, which is used to read Strings:

//taking input from the user
import java.util.Scanner;   // Import the Scanner class
class Input{
public static void main(String[]args)
Scanner sc=new Scanner(System.in);  // create object of scanner class
System.out.println("Enter your name :");
String name =sc.nextLine(); //Read the user input
System.out.println("your name is ="+name);
}
}

Output:

Enter your name:
xyz
Your name is = xyz

Input Types :

In the above example , we used the nextLine() method, which is used to read Strings that is input by user. To read other types, look at the table below:

Method	Description
nextBoolean()	Reads a boolean value from the user.
nextByte()	Reads a byte value from the user.
nextDouble()	Reads a double value from the user.
nextFloat()	Reads a float value from the user.
nextInt()	Reads a int value from the user.
nextLine()	Reads a String value from the user.
nextLong()	Reads a long value from the user.
nextShort()	Reads a short value from the user.

 

In this Example we use different methods to read data of various types like integer, float  etc.

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);

    System.out.println("Enter name, age and salary:");

    // String input
    String name = sc.nextLine();
    
    //integer input
   int age =sc.nextInt();

    // Numerical input
    double salary = sc.nextDouble();

    // Output input by user
    System.out.println("Name: " + name);
    System.out.println("Age: " + age);
    System.out.println("Salary: " + salary);
  }
}

Output:

Enter name, age and salary:
abc
18
30000
Name : abc
Age: 18
Salary:30000

 

More java practice programs:

Addition of two numbers in java

Find the Greatest of the Two Numbers in Java

Java Program to Check Number is Even or Odd

Java Program to Check Leap Year