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The program ckjm calculates Chidamber and Kemerer object-oriented metrics by processing the bytecode of compiled Java files. The program calculates for each class the following six metrics proposed by Chidamber and Kemerer.

• WMC: Weighted methods per class
• DIT: Depth of Inheritance Tree
• NOC: Number of Children
• CBO: Coupling between object classes
• RFC: Response for a Class
• LCOM: Lack of cohesion in methods

In addition it also calculates for each class

• Ca: Afferent couplings
• NPM: Number of public methods

If you use this tool in your research, please cite it as follows.

Diomidis Spinellis. Tool writing: A forgotten art? IEEE Software, 22(4):9–11, July/August 2005. doi:10.1109/MS.2005.111.

Visit the project's home page for more information.