Adding the required jars to the Application under Eclipse

This is a general query , but i am asking as you people are experienced and would have come across this type of situation before .

I have imported an existing Application under Eclipse IDE , which is missing s开发者_如何学编程ome jars , I need to add some jars to make it get compiled .

Now i have some 100 jars within a folder . how can i find what jar to add for that missing class ??

Please suggest me any ideas for this , thank you very much .

Thank you very much .

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If the project comes with a /lib folder containing some jars, add all of them. Right click the project > Build Path > Configure Build Path > "Libraries" tab -> Add jars

If this is your project, or you can do something about it, consider using a dependency management tool like Maven.