Murphy's Law and IndexOutOfBoundsException (array out-of-bounds exception ),
Another problem was reported during maintenance today. An array out-of-bounds exception occurred when querying the exam:
1 2017-02-28 10:45:24,827[ERROR] HttpException[10.32
Because of the need to resolve the iOS QR code address, the address of the resolution to the buttonAfter the function is written with a few two-dimensional code test no problem after submitted to SVN, the next day production environment, found that
Suppose you know the implementation of the Add () inside the ArrayList. Do not know that we will review in detail, two-step operation, Step1 Check array capacity, Step2 plug value and will size++.
--array subscript out of bounds
Suppose there are 2
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The implementation of a variable array of size for the list interface. All optional list operations are implemented and all elements, including NULL, are allowed. In addition to implementing the list interface, this
In general interview the Java Exception (runtimeexception) is the question that must be asked the common exception list four or five kinds, is the basic requirement. More .... Attention needs to accumulate several common types as follows:
In general interview the Java Exception (runtimeexception) is the question that must be asked the common exception list four or five kinds, is the basic requirement. More .... Attention needs to accumulate several common types as follows:
1. java.lang.NullPointerExceptionThis exception is often encountered, the exception of the explanation is "the program encountered a null pointer", simply called an uninitialized object or a non-existent object, this error often occurs in the
1. java.lang.NullPointerExceptionThis exception is often encountered, the exception of the explanation is "the program encountered a null pointer", simply called an uninitialized object or a non-existent object, this error often occurs in the
General interview Java Exception (runtimeexception) is a question that must be askedcommon exceptions are listed in four or five types, which are the basic requirements. More .... Need to be aware of accumulatedsome of the following are
Java Exception:1. Error2. Runtime Exception run-time exception3, Exception4. Throw user Custom exceptionThere are two types of exception classes: the Error class represents compilation and system errors, does not allow capture, and the exception
General interview in Java Exception (runtimeexception) is required to be asked the common Exceptions list four or five kinds, is the basic requirements. More .... It is important to note that several common types of accumulation are as follows:
1. Preface Try...catch...finally I'm afraid it's a familiar statement, and it's very simple to use, logically it seems to be easy to understand. However, I personally experience the "lesson" tells me that this thing is not as simple as the
Java Exception:1. Error2. Runtime Exception run-time exception3, Exception4. Throw user Custom exceptionThere are two types of exception classes: the Error class represents compilation and system errors, does not allow capture, and the exception
Java not caught exceptionBefore you learn to handle exceptions in a program, it's good to look at what happens if you don't deal with them. The following applet includes an expression that intentionally causes a 0 error to be removed.
Class
1. java.lang.NullPointerException This exception is certainly often encountered, the abnormal explanation is "the program encountered a null pointer", simply called an uninitialized object or a nonexistent object, this error often appears in the
Basic concepts of exceptionsException: An exception is a flow of instruction that causes the program to run, and if the exception is not properly handled, it may lead to the execution of the program, resulting in unnecessary loss, so in the design
in the Some exceptions are provided in Java to describe frequently occurring errors, some of which require a programmer to capture or declare, and some are automatically captured by a Java virtual machine. Common exception classes in Java are
Java Exception:1. Error2. Runtime Exception run-time exception3, Exception4. Throw user Custom exceptionThere are two types of exception classes: the Error class represents compilation and system errors, does not allow capture, and the exception
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