What is NumberUtils.createBigInteger in Java?

How to import `NumberUtils`

The definition of NumberUtils can be found in the Apache Commons Lang package, which we can add to the Maven project by adding the following dependency to the pom.xml file:

<dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.12.0</version>
</dependency>

For other versions of the commons-lang package, refer to the Maven Repository.

You can import the NumberUtils class as follows:

import org.apache.commons.lang3.math.NumberUtils;

Syntax

public static BigInteger createBigInteger(String str)

Parameters

str: The string to convert to a BigInteger value.

Return value

This method returns the converted BigInteger value.

If a null string is passed to the method, null is returned.

Code

import org.apache.commons.lang3.math.NumberUtils;
public class Main{
    public static void main(String[] args){
        // Example 1
        String valueToConvert = "234323232232";
        System.out.printf("NumberUtils.createBigInteger(%s) = %s", valueToConvert, NumberUtils.createBigInteger(valueToConvert));
        System.out.println();
        // Example 2
        valueToConvert = "234323wrf";
        System.out.printf("NumberUtils.createBigInteger(%s) = %s", valueToConvert, NumberUtils.createBigInteger(valueToConvert));
        System.out.println();
    }
}

Output

The output of the code will be as follows:

NumberUtils.createBigInteger(234323232232) = 234323232232

Exception in thread "main" java.lang.NumberFormatException: For input string: "234323wrf"
	at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
	at java.base/java.lang.Integer.parseInt(Integer.java:652)
	at java.base/java.math.BigInteger.<init>(BigInteger.java:534)
	at org.apache.commons.lang3.math.NumberUtils.createBigInteger(NumberUtils.java:983)
	at Main.main(Main.java:13)