Difference between java.lang.RuntimeException and java.lang.Exception

exception, java

Solution

Generally RuntimeExceptions are exceptions that can be prevented programmatically. E.g `NullPointerException`, `ArrayIndexOutOfBoundException`. If you check for `null` before calling any method, `NullPointerException` would never occur. Similarly `ArrayIndexOutOfBoundException` would never occur if you check the index first. `RuntimeException` are not checked by the compiler, so it is clean code.

EDIT : These days people favor `RuntimeException` because the clean code it produces. It is totally a personal choice.

Problem

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