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What is the difference between final, finally and finalize?
What is the difference between final, finally and finalize? Short answer: final - declares constant finally - relates with exception handling finalize - helps in garbage collection If asked to give details, explain: final field, final method, final class try/finally, try/catch/finally protected void... 2012-09-03, 2891👍, 0💬

How do you know if an explicit object casting is needed?
How do you know if an explicit object casting is needed? If you assign a superclass object to a variable of a subclass's data type, you need to do explicit casting. For example: Object a; Customer b; b = (Customer) a; When you assign a subclass to a variable having a supeclass type, the casting is p... 2012-08-07, 2891👍, 0💬

What’s the auto keyword good for?
What’s the auto keyword good for? Answer1 Not much. It declares an object with automatic storage duration. Which means the object will be destroyed at the end of the objects scope. All variables in functions that are not declared as static and not dynamically allocated have automatic storage duratio... 2012-03-08, 2891👍, 0💬

What state does a thread enter when it terminates its processing?
What state does a thread enter when it terminates its processing? When a thread terminates its processing, it enters the dead state. 2012-09-20, 2889👍, 0💬

What is synchronization and why is it important?
What is synchronization and why is it important? With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchronization, it is possible for one thread to modify a shared object while another thread is in the process of... 2012-05-31, 2886👍, 0💬

How do you write a function that can reverse a linked-list?
How do you write a function that can reverse a linked-list? void reverselist(void) { if(head==0) return; if(head-&gt;next==0) return; if(head-&gt;next==tail) { head-&gt;next = 0; tail-&gt;next = head; } else { node* pre = head; node* cur = head-&gt;next; node* curnext = cur-&... 2012-01-26, 2885👍, 0💬

Does it matter in what order catch statements for FileNotFoundException and IOExceptipon are written?
Does it matter in what order catch statements for FileNotFoundException and IOExceptipon are written? Yes, it does. The FileNoFoundException is inherited from the IOException. Exception's subclasses have to be caught first. 2012-06-13, 2883👍, 0💬

Which TextComponent method is used to set a TextComponent to the read-only state?
Which TextComponent method is used to set a TextComponent to the read-only state? setEditable() 2012-11-28, 2882👍, 0💬

Can each Java object keep track of all the threads that want to exclusively access to it?
Can each Java object keep track of all the threads that want to exclusively access to it? Yes. Use Thread.currentThread() method to track the accessing thread. 2012-06-13, 2882👍, 0💬

What is the Set interface?
What is the Set interface? The Set interface provides methods for accessing the elements of a finite mathematical set. Sets do not allow duplicate elements. 2012-08-02, 2876👍, 0💬

What is the differnce between final, finally and finalize?
What is the differnce between final, finally and finalize? final is used for making a class no-subclassable, and making a member variable as a constant which cannot be modified. finally is usuall used to release all the resources utilized inside the try block. All the resources present in the finali... 2012-09-10, 2871👍, 0💬

Can we implement an interface in a JSP?
Can we implement an interface in a JSP? No 2013-08-10, 2870👍, 0💬

What is a static method?
What is a static method? A static method is a method that belongs to the class rather than any object of the class and doesn't apply to an object or even require that any objects of the class have been instantiated. 2012-07-11, 2867👍, 0💬

Are COM objects managed or unmanaged?
Are COM objects managed or unmanaged? Since COM objects were written before .NET, apparently they are unmanaged. Any code not written in the Microsoft .NET framework environment is UNMANAGED. So naturally COM+ is unmanaged because it is written in Visual Basic 6. 2014-12-02, 2866👍, 0💬

Does Perl have reference type?
Does Perl have reference type? Yes. Perl can make a scalar or hash type reference by using backslash operator. For example $str = "here we go"; # a scalar variable $strref = \$str; # a reference to a scalar @array = (1..10); # an array $arrayref = \@array; # a reference to an array Note that the ref... 2013-09-12, 2863👍, 0💬

What is the preferred size of a component?
What is the preferred size of a component? The preferred size of a component is the minimum component size that will allow the component to display normally. 2012-06-06, 2863👍, 0💬

Can Java object be locked down for exclusive use by a given thread?
Can Java object be locked down for exclusive use by a given thread? Yes. You can lock an object by putting it in a "synchronized" block. The locked object is inaccessible to any thread other than the one that explicitly claimed it. 2012-06-11, 2859👍, 0💬

What is multi-threading?
What is multi-threading? Multi-threading means various threads that run in a system. 2012-06-08, 2857👍, 0💬

What are PDBs? Where must they be located for debugging to work?
What are PDBs? Where must they be located for debugging to work? Answer1: To debug precompiled components such as business objects and code-behind modules, you need to generate debug symbols. To do this, compile the components with the debug flags by using either Visual Studio .NET or a command line... 2014-02-18, 2856👍, 0💬

What invokes a thread's run() method?
What invokes a thread's run() method? After a thread is started, via its start() method of the Thread class, the JVM invokes the thread's run() method when the thread is initially executed. 2012-06-14, 2856👍, 0💬

What is the difference between the Font and FontMetrics classes?
What is the difference between the Font and FontMetrics classes? The FontMetrics class is used to define implementation-specific properties, such as ascent and descent, of a Font object 2012-07-17, 2855👍, 0💬

Name two subclasses of the TextComponent class.
Name two subclasses of the TextComponent class. TextField and TextArea 2012-10-29, 2854👍, 0💬

How do I tell the client applications that are already installed to start using this new MyApp.dll?
How do I tell the client applications that are already installed to start using this new MyApp.dll? So let’s say I have an application that uses MyApp.dll assembly, version 1.0.0.0. There is a security bug in that assembly, and I publish the patch, issuing it under name MyApp.dll 1.1.0.0. How do ... 2014-12-29, 2853👍, 0💬

How could Java classes direct program messages to the system console, but error messages, say to a file?
How could Java classes direct program messages to the system console, but error messages, say to a file? The class System has a variable out that represents the standard output, and the variable err that represents the standard error device. By default, they both point at the system console. This ho... 2012-05-18, 2851👍, 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