Web Reference: http://www.mcprogramming.orghttp://www.essentialcscourses.comjava error stream - How to print an error stream in java when an exception is thrown. Text will ... Java is one of the world's most widely used programming languages. Learn Java with simple explanations, practical examples, exercises, and challenges that help you build real skills step by step. Mar 18, 2016 · Compiler will give compile time error for local variables if any local variable is used without initializing it. From your code snippet it is clear then you are not initializing the variables width and height. You have to initialize them to 0 like below.
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