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CCPS 209 midterm 2 test questions & answers 2024/2025
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CCPS 209 midterm 2 test questions & answers 2024/2025
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CCPS 209 midterm 2 test questions &answers 2024/2025
exception - ANSWERSAn exception is a problem that occurs when a program is running. Often the
problem is external to the program, such as bad user input, or mechanical failure of an I/O device. When
an exception occurs, the Java virtual machine creates an object of class Exception which holds
information about the problem.
error - ANSWERSAn error, also, is a problem that occurs when a program is running. An error is
represented by an object of class Error. But an error is too severe for a program to handle. Most
application programs must stop running.
Throwable - ANSWERSClass Exception and class Error both extend Throwable. A Java method can
"throw" an object of class Throwable. (We will do this later on in this chapter.) For example, Scanner
threw an exception when it tried to convert "rats" into an integer.
exceptions vs errors - ANSWERSExceptions are different from Errors because programs can be written to
recover from Exceptions, but programs can not be written to recover from Errors. The rest of this chapter
discusses Exceptions.
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