What is NumberUtils.toFloat() 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 float toFloat(String str, float defaultValue)

Parameters

String str: This is the string to convert.
float defaultValue: This is the default value to return.

Return value

This method returns a float value. If the conversion fails, it returns the default value.

Overloaded methods

public static float toFloat(final String str)

This variant of the function returns 0.0f if conversion fails.

import org.apache.commons.lang3.math.NumberUtils;
public class Main{
    public static void main(String[] args){
        // Example 1
        String stringToConvert = "23.356";
        float defaultValue = 24.34f;
        System.out.printf("The output of the method NumberUtils.toFloat(%s, %s) is %s", stringToConvert, defaultValue, NumberUtils.toFloat(stringToConvert, defaultValue));
        System.out.println();
        // Example 2
        stringToConvert = "233sdf";
        defaultValue = 24.34f;
        System.out.printf("The output of the method NumberUtils.toFloat(%s, %s) is %s", stringToConvert, defaultValue, NumberUtils.toFloat(stringToConvert, defaultValue));
        System.out.println();
    }
}