The import org.junit cannot be resolved

Question

I need to solve a java problem for an interview, and they have sent me the test class. It starts with

import org.junit.Before;

and also ha

Answer 1

you can easily search for a line like "@Test" and then use the quickfix "add junit 4 library to the build path" at this line. i think this is faster than adding junit manually to the project.

Answer 2

Update to latest JUnit version in pom.xml. It works for me.

Answer 3

If you are using eclipse and working on a maven project, then also the above steps work.

Right-click on your root folder.

Properties -> Java Build Path -> Libraries -> Add Library -> JUnit -> Junit 3/4

Step By Step Instructions here

Answer 4

You need to add junit library to the classpath of your project. There are several choices to achieve it depending on your development setup.

1. Command line: In the case of command line invocations, you will have to add junit.jar to the classpath of your application with java -cp /path/to/junit.jar. Take a look at the answers here.

2. Using eclipse: Eclipse distributions are bundled with this library and this is how you can use it for your project. Right click on the eclipse project and navigate:

Properties -> Java Build Path -> Libraries -> Add Library -> JUnit -> Junit 3/4

In the scenarios where you want to use a different version of the jar, instead of clicking on Add Library above you should click on Add External Jar and locate the library on the file system.

Answer 5

In case you want to create your own Test Class. In Eclipse go to File -> New -> J Unit Test Case. You can then choose all your paths and testing class setup within the wizard pop-up.

Answer 6

Right-click on the eclipse project and navigate:

Properties -> Java Build Path -> Libraries -> Add Library -> JUnit -> Junit 3/4

It works on mine.