The installation and use of PMD plug-ins

The PMD plugin installation address is: Http://pmd.sourceforge.net/eclipse

After the PMD plug-in is installed, it consists of 2 parts: CPD and PMD.

CPD is used to check for repetitive code (for example, by copying and pasting the resulting code)

Use it very simply, right click on your item, select Find suspect cut and Paste:

Then select the language and output format (I strongly recommend using XML format because it is more readable)

Then you can see the CPD report, and you can switch to the CPD view:

Of course, you can also go to your project to see, you will find that the project under a more than a directory called "reports", you open, you can find the "cpd-" prefix to the file, which is CPD check the duplicate code after the report file, the extension depends on the type of report you specified in the previous step: