#CONVERT STRING TO INTEGER JAVA HOW TO#

Since: Java 8 Integer.parseInt(s, beginIndex, endIndex, radix) Method signature: public static int parseInt(String s, int radix) throws NumberFormatExceptionĮxamples: (Integer.parseInt('0', 10)) Parses a string argument as a signed primitive int in the radix specified by the second argument.

Method signature: public static int parseInt(String s) throws NumberFormatExceptionĮxample: int i = Integer.parseInt('100') Integer.parseInt(s)Ĭonverts a String value as a signed primitive int. You should use methods described here to parse a string to int. NOTE: It’s impossible to cast String object to primitive int or to Integer object. If you need to turn a string into an int and specify default value in case of NumberFormatException – use NumberUtils.toInt from.If you have String in special format (“0x“, “0X“, “#“) – use code.If you need to convert String to Integer object – use Integer.valueOf.If you are sure that result is always positive and you should convert String to primitive int – use Integer.parseUnsignedInt.If you need to parse String to primitive int – use Integer.parseInt.

#CONVERT STRING TO INTEGER JAVA HOW TO#

How to Convert a String to an Int in Java Methods Overview I’ll show 10 methods of how to change String to int with descriptions and examples. I think you will agree with me when I say:Ĭonverting String to int in Java is a REALLY one of the most used operations.

Convert string to integer java