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Read integers from console in Java
To read integers from console, use Scanner class.
Scanner myInput = new Scanner( System.in );
Allow a use to add an integer using the nextInt() method.
System.out.print( "Enter first integer: " ); int a = myInput.nextInt();
In the same way, take another input in a new variable.
System.out.print( "Enter second integer: " ); Int b = myInput.nextInt();
Let us see the complete example.
Example
import java.util.Scanner; public class Demo { public static void main( String args[] ) { Scanner myInput = new Scanner( System.in ); int a; int b; int sum; System.out.print( "Enter first integer: " ); a = myInput.nextInt(); System.out.print( "Enter second integer: " ); b = myInput.nextInt(); sum = a + b; System.out.printf( "Sum = %d
", sum ); } }
We added the following two integer values from the console.
5 10
After adding the values and running the program, the following output can be seen.
Enter first integer: 5 Enter second integer: 10 Sum = 15
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