Using C's Printf-style Formatting in Java - Java Language Basics

Java examples for Language Basics:Number Format

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Description

Using C's Printf-style Formatting in Java

Demo Code

import java.util.Date;

public class Main {
  public static void main(String[] args) {
    // Formatting strings
    System.out.printf("%1$s, %2$s, and %3$s %n", "Fu", "Hu", "Lo");
    System.out.printf("%3$s, %2$s, and %1$s %n", "Fu", "Hu", "Lo");

    // Formatting numbers
    System.out.printf("%1$4d, %2$4d, %3$4d %n", 1, 10, 100);
    System.out.printf("%1$4d, %2$4d, %3$4d %n", 10, 100, 1000);
    System.out.printf("%1$-4d, %2$-4d, %3$-4d %n", 1, 10, 100);
    System.out.printf("%1$-4d, %2$-4d, %3$-4d %n", 10, 100, 1000);
        // ww  w .  j  a v  a2s  .c  o  m
    // Formatting date and time
    Date dt = new Date();
    System.out.printf("Today is %tD %n", dt);
    System.out.printf("Today is %tF %n", dt);
    System.out.printf("Today is %tc %n", dt);        
  }
}

Result


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