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malloc is returning crazy pointer values ...
malloc is returning crazy pointer values, I have included the line extern void *malloc(); before I call it. malloc accepts an argument of type size_t, and size_t may be defined as unsigned long. If you are passing ints (or even unsigned ints), malloc may be receiving garbage (or similarly if you are... 2016-04-15, 2364👍, 0💬

What modifiers may be used with an interface declaration?
What modifiers may be used with an interface declaration? An interface may be declared as public or abstract. 2012-12-04, 2364👍, 0💬

What is the purpose of the System class?
What is the purpose of the System class? The purpose of the System class is to provide access to system resources. 2012-11-27, 2364👍, 0💬

Which one of the following objects is used to create a foreign key between two DataTables?
Which one of the following objects is used to create a foreign key between two DataTables? Which one of the following objects is used to create a foreign key between two DataTables? * DataRelation * DataRelationship * DataConstraint * DataKey DataRelation 2014-07-21, 2363👍, 0💬

What does `$result = f() .. g()' really return?
What does `$result = f() .. g()' really return? False so long as f() returns false, after which it returns true until g() returns true, and then starts the cycle again. This is scalar not list context, so we have the bistable flip-flop range operator famous in parsing of mail messages, as in `$in_bo... 2013-09-06, 2363👍, 0💬

What JSP lifecycle methods can I override?
What JSP lifecycle methods can I override? You cannot override the _jspService() method within a JSP page. You can however, override the jspInit() and jspDestroy() methods within a JSP page. jspInit() can be useful for allocating resources like database connections, network connections, and so forth... 2013-07-24, 2363👍, 0💬

Which class is the superclass for every class.
Which class is the superclass for every class. Object. 2013-04-11, 2363👍, 0💬

What is your platform's default character encoding?
What is your platform's default character encoding? If you are running Java on English Windows platforms, it is probably Cp1252. If you are running Java on English Solaris platforms, it is most likely 8859_1.. 2013-01-09, 2363👍, 0💬

Which class is extended by all other classes?
Which class is extended by all other classes? The Object class is extended by all other classes. 2012-11-12, 2362👍, 0💬

Suppose I call a COM object from a .NET applicaiton, but COM object throws an error. What happens on the .NET end?
Suppose I call a COM object from a .NET applicaiton, but COM object throws an error. What happens on the .NET end? COM methods report errors by returning HRESULTs; .NET methods report them by throwing exceptions. The runtime handles the transition between the two. Each exception class in the .NET Fr... 2014-12-15, 2359👍, 0💬

What's the best way to write a multi-statement macro?
What's the best way to write a multi-statement macro? The usual goal is to be able to invoke the macro as if it were an expression statement consisting of a function call: MACRO(arg1, arg2); This means that the ``caller'' will be supplying the final semicolon, so the macro body should not. The macro... 2016-02-22, 2357👍, 0💬

In which package are most of the AWT events that support the event-delegation model defined?
In which package are most of the AWT events that support the event-delegation model defined? Most of the AWT-related events of the event-delegation model are defined in the java.awt.event package. The AWTEvent class is defined in the java.awt package. 2012-10-16, 2357👍, 0💬

How do you prevent the Creation of a Session in a JSP Page and why? What is the difference between include directive & jsp:inclu
How do you prevent the Creation of a Session in a JSP Page and why? What is the difference between include directive & jsp:include action? By default, a JSP page will automatically create a session for the request if one does not exist. However, sessions consume resources and if it is not necess... 2013-08-06, 2356👍, 0💬

Explain the Polymorphism principle
Explain the Polymorphism principle The meaning of Polymorphism is something like one name many forms. Polymorphism enables one entity to be used as as general category for different types of actions. The specific action is determined by the exact nature of the situation. The concept of polymorphism ... 2013-03-01, 2356👍, 0💬

What is the purpose of the Runtime class?
What is the purpose of the Runtime class? The purpose of the Runtime class is to provide access to the Java runtime system. 2012-10-22, 2355👍, 0💬

What is an execution plan? When would you use it? How would you view the execution plan?
What is an execution plan? When would you use it? How would you view the execution plan? The Query Analyzer has a feature called Show Execution Plan. This option allows you to view the execution plan used by SQL Server’s Query Optimizer to actually execute the query. This option is available from... 2014-10-13, 2354👍, 0💬

What is Externalizable?
What is Externalizable? Externalizable is an Interface that extends Serializable Interface. And sends data into Streams in Compressed Format. It has two methods, writeExternal(ObjectOuput out) and readExternal(ObjectInput in) 2013-06-18, 2354👍, 0💬

What is the Collection interface?
What is the Collection interface? The Collection interface provides support for the implementation of a mathematical bag - an unordered collection of objects that may contain duplicates. 2012-12-10, 2354👍, 0💬

Can an object be garbage collected while it is still reachable?
Can an object be garbage collected while it is still reachable? A reachable object cannot be garbage collected. Only unreachable objects may be garbage collected.. 2012-11-12, 2354👍, 0💬

Can a private method of a superclass be declared within a subclass?
Can a private method of a superclass be declared within a subclass? Sure. A private field or method or inner class belongs to its declared class and hides from its subclasses. There is no way for private stuff to have a runtime overloading or overriding (polymorphism) features. 2012-08-31, 2353👍, 0💬

What is the ResourceBundle class?
What is the ResourceBundle class? The ResourceBundle class is used to store locale-specific resources that can be loaded by a program to tailor the program's appearance to the particular locale in which it is being run. 2013-01-18, 2349👍, 0💬

Do not use the String contatenation operator in lengthy loops or other places where performance could suffer. Is that true?
Do not use the String contatenation operator in lengthy loops or other places where performance could suffer. Is that true? Yes. 2013-04-08, 2348👍, 0💬

How can the Checkbox class be used to create a radio button?
How can the Checkbox class be used to create a radio button? By associating Checkbox objects with a CheckboxGroup. 2012-12-18, 2347👍, 0💬

Return a null pointer or a pointer to 0 bytes? .....
What should malloc(0) do? Return a null pointer or a pointer to 0 bytes? The ANSI/ISO Standard says that it may do either; the behavior is implementation-defined ortable code must either take care not to call malloc(0), or be prepared for the possibility of a null return. 2016-04-21, 2346👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML