Primitive to Wrapper Class 

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.primitiveToWrapper() API. It returns the wrapper class object associated with the given primitive class.

File Name  :   com/bethecoder/tutorials/commons_lang/tests/classes/PrimitiveToWrapperClsTest.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 PrimitiveToWrapperClsTest {   /**    * @param args    */   public static void main(String[] args) {     Class<?> intClazz = ClassUtils.primitiveToWrapper(int.class);     System.out.println(intClazz);     Class<?> charClazz = ClassUtils.primitiveToWrapper(char.class);     System.out.println(charClazz);          Class<?> [] wrapperClasses =        ClassUtils.primitivesToWrappers(short.class, long.class);     System.out.println(Arrays.toString(wrapperClasses));   } }

class java.lang.Integer
class java.lang.Character
[class java.lang.Short, class java.lang.Long]