BE THE CODER > Tools and Libs > Commons Lang3 Examples > Classes

Apache Commons Lang 3.0 is a java library with lot of utilities and reusable components. This requires the library commons-lang3-3.0.1.jar to be in classpath. The following example shows using ClassUtils.wrapperToPrimitive() API. It returns the primitive class object associated with the given wrapper class.

File Name :	com/bethecoder/tutorials/commons_lang/tests/classes/WrapperToPrimitiveClsTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.commons_lang.tests.classes;



import java.util.Arrays;



import org.apache.commons.lang3.ClassUtils;



public class WrapperToPrimitiveClsTest {



  /**

   * @param args

   */

  public static void main(String[] args) {



    Class<?> intClazz = ClassUtils.wrapperToPrimitive(Integer.class);

    System.out.println(intClazz);



    Class<?> charClazz = ClassUtils.wrapperToPrimitive(Character.class);

    System.out.println(charClazz);

    

    Class<?> [] primitiveClasses = 

      ClassUtils.wrappersToPrimitives(Short.class, Long.class);

    System.out.println(Arrays.toString(primitiveClasses));



  }



}

Wrapper to Primitive Class