Overview of Java String Formatting

Welcome! In today's lesson, we're delving into String Formatting in Java, an essential feature for presenting data in a neat manner. We'll be exploring the intricate details of format strings, as well as methods such as printf and String.format. Ready? Let's get started!

Fundamentals of String Formatting in Java

Our journey begins with understanding the concept of String formatting. This concept reshapes the way we view a string. In Java, it's somewhat akin to enhancing the appearance of existing data. Specifically, format strings are tools we use to 'dress up' our data. These strings employ a delimiter %, along with flags, width, and precision specifications to format the data. A simple example can illustrate this concept quite well:

In this instance, we used %s - a placeholder for a string - that gets replaced by the string Tom.

The other available options include:

  • %d - integer number
  • %f - float number
Control Over Formatting With Width and Precision
Sign up
Join the 1M+ learners on CodeSignal
Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal