Different ways to format long with Java System.out.format

The System.out.format is used in Java to format output. Here, let's say the following is our long.

 long val = 787890; 

To format, we have considered the following that justifies the output.

 System.out.format("%d%n", val); System.out.format("%9d%n", val); System.out.format("%+9d%n", val); System.out.format("%08d%n", val); System.out.format("%,9d%n", val); 

The following is the complete example that displays the difference in output as well.

Example

Live Demo

 import java.util.Locale; public class Demo { public static void main(String []args) { long val = 787890; System.out.format("%d%n", val); System.out.format("%9d%n", val); System.out.format("%+9d%n", val); System.out.format("%08d%n", val); System.out.format("%,9d%n", val); } } 

Here is the output. You can easily notice the differences in format.

Output

 787890 787890 +787890 00787890 787,890