How can I pad an integer with zeros on the left?

Question

How can I pad an integer with zeros on the left?

How do you left pad an int with zeros when converting to a String in java?

I'm primarily looking to pad out integers up to 9999 with leading zeros (e.g. 1 = 0001).

zero-pad formatting java

3 years ago by Kajalsi45d

2 Answers

Login / Signup to Answer the Question.

Login Signup

**akshay1995** · Answer 1 · 2021-06-05T11:45:27

Use java.lang.String.format(String,Object...) like this:



String.format("%05d", yournumber);

for zero-padding with a length of 5. For hexadecimal output replace the d with an x as in "%05x".

The full formatting options are documented as part of java.util.Formatter.

**pankajshivnani123** · Answer 2 · 2021-06-07T14:30:01

Let's say you want to print 11 as 011
You could use a formatter: "%03d".

You can use this formatter like this:



int a = 11;

String with3digits = String.format("%03d", a);

System.out.println(with3digits);

Alternatively, some java methods directly support these formatters:

System.out.printf("%03d", a);

C TUTORIAL

C PROGRAMS

INTERVIEW TESTS

EXECUTE CODE

C++ TUTORIAL

C++ PROGRAMS

INTERVIEW TESTS

EXECUTE CODE

PYTHON TUTORIAL

PYTHON HOW TOS

INTERVIEW TESTS

EXECUTE CODE

JAVA TUTORIAL

JAVA CODE EXAMPLES

SPRING TUTORIAL

MORE IN JAVA

COMPUTER ARCHITECTURE

COMPUTER NETWORK

OPERATING SYSTEM

DBMS & SQL

PL/SQL

MongoDB

EXECUTE SQL

ANDROID DEVELOPMENT

GO LANGUAGE

LINUX

DOCKER

HTML TAGS (A to Z)

CSS REFERENCES

SASS/SCSS

KOTLIN

GAME DEVELOPMENT

PHP

GIT GUIDE

JAVASCRIPT

ADVANCED DSA

How can I pad an integer with zeros on the left?

2 Answers

Login / Signup to Answer the Question.