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 Tools and Libs > Commons Bean Utils > Invoke Static Method

Invoke Static Method 

Apache Commons BeanUtils is a java library useful for accessing bean properties and methods. It provides introspection capabilities to view and manipulate the properties and operations provided by the given class. This requires the libraries commons-beanutils-1.8.3.jar, commons-beanutils-bean-collections-1.8.3.jar, commons-beanutils-core-1.8.3.jar, commons-collections-3.2.1.jar, commons-logging.jar to be in classpath. The following example shows using MethodUtils.invokeStaticMethod() API. It invokes the named static method with given arguments.

File Name  :  
com/bethecoder/tutorials/commons_beanutils/common/Student.java 
   
package com.bethecoder.tutorials.commons_beanutils.common;

public class Student {

  private String name;
  private int age;
  private String hobby;

  public Student() {
  }

  public Student(String name, int age, String hobby) {
    super();
    this.name = name;
    this.age = age;
    this.hobby = hobby;
  }

  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
  public int getAge() {
    return age;
  }
  public void setAge(int age) {
    this.age = age;
  }
  public String getHobby() {
    return hobby;
  }
  public void setHobby(String hobby) {
    this.hobby = hobby;
  }
  
  public String toString() {
    return "Student[name = " + name + ", age = " + age + ", hobby = " + hobby + "]";
  }
}
   

File Name  :  
com/bethecoder/tutorials/commons_beanutils/InvokeStaticMethodTest.java 
Author  :  Sudhakar KV
Email  :  kvenkatasudhakar@gmail.com
   
package com.bethecoder.tutorials.commons_beanutils;

import java.lang.reflect.InvocationTargetException;
import org.apache.commons.beanutils.MethodUtils;

public class InvokeStaticMethodTest {

  /**
   @param args
   @throws InvocationTargetException 
   @throws IllegalAccessException 
   @throws NoSuchMethodException 
   */
  public static void main(String[] argsthrows NoSuchMethodException, 
    IllegalAccessException, InvocationTargetException  {
    
    Integer intVal = (IntegerMethodUtils.invokeStaticMethod(
        Integer.class, "parseInt"new Object [] { "123456" });
    
    System.out.println(intVal);
    
    Double power = (DoubleMethodUtils.invokeStaticMethod(
        Math.class, "pow"
        new Object [] { 2}
        new Class<?> [] { Double.class, Double.class });
    
    System.out.println(power);
  }

}
   

It gives the following output,
123456
16.0


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