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Java language Programming Interview Questions

What is an Exception Abnormal conditions that may occur while running a Java program allow creation of robust, predictable applications. _Checked_ Predictable, handling verified during compile time _Unchecked_ mostly uncontrollable factors (out of memory, ...)
What are the general types of Exceptions All inherit from class Throwable Exception (Checked): [Run Time] + [Compile Time] Must be handled, i.e. SQLException, IOException Error (Unchecked): May be thrown, not usually to be caught, used by Java Runtime, i.e. NullPointer.
Explain some details of Checked Exceptions Java source code must deal with, either by catching it or declaring it to be thrown. Programmers should anticipate and handle
Explain some details of Unchecked Exceptions Inherit from class Error or RuntimeException. Should not handle these exceptions because they represent errors from which programs cannot reasonably be expected to recover while the program is running.
Summarize Exceptions Checked Exception handling is verified during compile time while Unchecked Exception is mostly programming errors
Give a coding example of an using exceptions try { someMethod(); } catch ( ExType ex ) { log(message); } finally() { }
Created by: rjpelletier