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How to call the public method using Java Reflection | Reflection in java

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Ram N

Posts: 2777
Nickname: ramram
Registered: Jul, 2014

Ram N is Java Programmer
How to call the public method using Java Reflection | Reflection in java Posted: Nov 2, 2017 6:33 AM
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This post originated from an RSS feed registered with Java Buzz by Ram N.
Original Post: How to call the public method using Java Reflection | Reflection in java
Feed Title: JAVA EE
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DisplayMessage.java
class DisplayMessage
{
public void displayMessage(String message)
{
System.out.println(message);
}
}

ReflectionDemo.java
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
*
* Invoking Methods using Method Object.
*
*/

public class ReflectionDemo
{
public static void main(String[] args)
{
try
{
Class<DisplayMessage> classObj = DisplayMessage.class;
Method method = classObj.getMethod("displayMessage",
new Class[] { String.class });

DisplayMessage displayMessageObj= classObj.newInstance();
/*
* Invokes the underlying method represented by this Method object,
* on the specified object with the specified parameters.
*/

method.invoke(displayMessageObj, "hi");

}
catch (SecurityException | IllegalArgumentException
| NoSuchMethodException | IllegalAccessException
| InvocationTargetException | InstantiationException e)
{
e.printStackTrace();
}
}

}
Output
hi

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/ReflectionDemo-invoke_method.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/ReflectionDemo-invoke_method

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/35f19409ce262cff1a4ed631c9adc6ca413c2cb0/BasicJava/ReflectionDemo-invoke_method/?at=master

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  • Read: How to call the public method using Java Reflection | Reflection in java

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