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How to use Java Format Specifier?

import java.util.Calendar;

import java.util.Formatter;

 

public class Main {

  public static void main(String args[]) {

    Formatter fmt = new Formatter();

 

    fmt = new Formatter();

    System.out.println(fmt.format("%s gap filler %d %f", "Astring", 10, 12.3)); 

  

  }

}

You can obtain a reference to the underlying output buffer by calling out(). It returns a reference to an Appendable object.

 

The code above generates the following result.

 

Astring gap filler 10 12.300000