Close

Java String Formatting - How to format signed integers using String#printf()?

Java String Formatting Java 

This example shows how to format signed integers with String#printf()

Signed integer means it can hold both positive and negative values.

The format specifiers %+d is used for this purpose.

The specified signed is used as default which is overridden by the value sign if specified

Types include: byte, Byte, short, Short, int and Integer, long, Long, and BigInteger

The include parentheses to represent negative integers, the specifiers %(d is used.

package com.logicbig.example.string;

public class StringPrintfSignedInteger {

    public static void main(String[] args) {
        //including + sign
        System.out.printf("%+d%n", 45);
        System.out.printf("%+d%n", -45);

        //including parentheses for negative integers
        System.out.printf("%(d%n", -25);
        System.out.printf("%(d%n", 25);
    }
}

Output

+45
-45
(25)
25

See Also