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Published online by Cambridge University Press: 10 July 2020
Sometimes your program has some specific problem, or bug: perhaps it fails to compile, or perhaps there is a situation in which it does not do what you want. This chapter helps you approach this difficult situation systematically: localising, understanding and removing the bug, and finally, taking action to reduce your chance of introducing a similar bug again. It discusses common problems, including non-termination and null pointer exceptions, and helpful techniques such as cardboard debugging and defensive programming.
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