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What are Checked and UnChecked Exception?
A checked exception is some subclass of Exception (or Exception itself), excluding class RuntimeException and its subclasses. Making an exception checked forces client programmers to deal with the possibility that the exception will be thrown.
Example: IOException thrown by java.io.FileInputStream's read() method·
Unchecked exceptions are RuntimeException and any of its subclasses. Class Error and its subclasses also are unchecked. With an unchecked exception, though, the compiler doesn't force client programmers either to catch the exception or declare it in a throws clause. In fact, client programmers might not even know that the exception could be thrown.
Example: StringIndexOutOfBoundsException thrown by String's charAt() method· Checked exceptions must be caught at compile time. Runtime exceptions do not require to be. Errors often cannot be.
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list The Java Class Library? Java holds an extensive library of pre-written classes you can use in your programs. These classes are separated into groups known as packages. Th
For an assignment I need to write an array program to go along with an instance variable. I keep getting the no main class error when I run my program.
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How many bits are used to show Unicode, ASCII, UTF-16, and UTF-8 characters? Unicode requires 16 bits and ASCII require 7 bits although the ASCII character set uses only 7 bits
How to Drawing Images at Actual Size Once the image is loaded draw it in the paint() method by using the drawImage() method like this g.drawImage(img, x, y, io) img is a
What is use of join in Java Threading
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