How to execute class with a main() method in a package, JAVA Programming

Assignment Help:

 

Example:  You have a class named "Set" in a project folder "e:\myProject" and package named com.zxy.client, will you be able to compile and execute it as it is

 

 

package com.xyz.client;

 

public class Pet {

public static void main(String[] args) {

System.out.println("I am found in the classpath");

}

}

 

To run-> e:\myProject> java com.zxy.client.Set

 

The answer is no and you would get the following exception: "Exception in thread "main" java.lang.- NoClassDefFoundError: com/zxy/client/Set". You have to set the classpath. How shall you do that? One of the following ways:

 

1. Set the operating system CLASSPATH environment variable to have the project folder "e:\myProject".

2. Set the operating system CLASSPATH environment variable to have a jar file "e:/myProject/client.jar", which has the Set.class file in it.

3. Run it with -classpath or -cp option as given below:

c:\>java -cp c:/myProject com.xyz.client.Pet

OR

c:\>java -classpath c:/myProject/client.jar com.xyz.client.Pet

 


Related Discussions:- How to execute class with a main() method in a package

Write a java rest client, Write a Java REST client to perform the following...

Write a Java REST client to perform the following- The client will read the contents of the file - invoice.txt. The first line of the file will display the type of the currency.

Palindrome, A palindrome is a string that reads the same from both the ends...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Difference between ejb 2.0and ejb 1.1, EJB 2.0 has the additional advantage...

EJB 2.0 has the additional advantages over the EJB 1.1 given below 1. Local interfaces : These are beans that can be needed locally, that means by the same Java Virtual Machi

Develop a desktop chatbot application, Develop a desktop Chatbot applicatio...

Develop a desktop Chatbot application Project Description: Looking for an in depth and smart working chatbot Seeking someone with skills working with AI and chatbots and t

Unicode-ascii utf16-utf 8, How many bits are we used in Unicode, ASCII, U...

How many bits are we used in Unicode, ASCII, UTF-16, and UTF-8 characters?

How to initialize array in java, How to initialize array in java ? Indi...

How to initialize array in java ? Individual elements of an array are referenced through the array name and through an integer that represents their position in the array. The

How would you interact between servlets and applets? , We may use the java...

We may use the java.net.URL and java.net.URLConnection classes to start a standard HTTP connection and "tunnel" to a Web server. The server then gives this information to the s

Explain about the static classes, Explain about the Static classes A  ...

Explain about the Static classes A  class  can  have  static  variables    and    methods.    Static    methods    and    variables    are  associated  with  class  itself  an

Debugging, Debugging mode can be enabled by adding the following line of co...

Debugging mode can be enabled by adding the following line of code before creating new connections: XMPPConnection.DEBUG_ENABLED = true; When debugging mode is enabled, a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd