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Can we define private and protected modifiers for variables in interfaces?
Can we define private and protected modifiers for variables in interfaces? Yes. 2013-02-05, 2341👍, 0💬

What are the problems faced by Java programmers who don't use layout managers?
What are the problems faced by Java programmers who don't use layout managers? Without layout managers, Java programmers are faced with determining how their GUI will be displayed across multiple windowing systems and finding a common sizing and positioning that will work within the constraints impo... 2013-01-31, 2341👍, 0💬

What is Externalizable interface?
What is Externalizable interface? Externalizable is an interface which contains two methods readExternal and writeExternal. These methods give you a control over the serialization mechanism. Thus if your class implements this interface, you can customize the serialization process by implementing the... 2013-05-22, 2339👍, 0💬

What are ClassLoaders?
What are ClassLoaders? A class loader is an object that is responsible for loading classes. The class ClassLoader is an abstract class. Given the name of a class, a class loader should attempt to locate or generate data that constitutes a definition for the class. A typical strategy is to transform ... 2013-03-14, 2339👍, 0💬

Is null a keyword?
Is null a keyword? The null value is not a keyword. 2013-02-14, 2338👍, 0💬

What is the difference between a.Equals(b) and a == b?
What is the difference between a.Equals(b) and a == b? Answer1: a=b is used for assigning the values (rather then comparison) and a==b is for comparison. Answer2: a == b is used to compare the references of two objects a.Equals(b) is used to compare two objects Answer3: A equals b -&gt; copies c... 2014-02-26, 2335👍, 0💬

What are the restrictions placed on static method ?
What are the restrictions placed on static method ? We cannot override static methods. We cannot access any object variables inside static method. Also the this reference also not available in static methods. 2013-03-12, 2335👍, 0💬

How can I read a single character from the keyboard without waiting for the RETURN key?
How can I read a single character from the keyboard without waiting for the RETURN key? How can I stop characters from being echoed on the screen as they're typed? Alas, there is no standard or portable way to do these things in C. Concepts such as screens and keyboards are not even mentioned in the... 2015-04-29, 2333👍, 0💬

Which dll is required to translate XML to SQL in IIS ?
Which dll is required to translate XML to SQL in IIS ? Microsoft.data.sqlxml.dll 2013-12-24, 2333👍, 0💬

The process that ASP.NET uses to keep track of Sessions without cookies is ..,
The process that ASP.NET uses to keep track of Sessions without cookies is .., The process that ASP.NET uses to keep track of Sessions without cookies is * Cookie Munging * Cookie Monking * Cookie Mocking * Cookie Munching Cookie munging 2014-06-16, 2332👍, 0💬

Objects are passed by value or by reference?
Objects are passed by value or by reference? Java only supports pass by value. With objects, the object reference itself is passed by value and so both the original reference and parameter copy both refer to the same object . 2013-05-17, 2332👍, 0💬

What is the difference between the Boolean & operator and the && operator?
What is the difference between the Boolean & operator and the && operator? If an expression involving the Boolean & operator is evaluated, both operands are evaluated. Then the & operator is applied to the operand. When an expression involving the && operator is evaluated... 2012-10-18, 2332👍, 0💬

Why isn't there operator overloading?
Why isn't there operator overloading? Because C++ has proven by example that operator overloading makes code almost impossible to maintain. In fact there very nearly wasn't even method overloading in Java, but it was thought that this was too useful for some very basic methods like print(). Note tha... 2013-02-11, 2330👍, 0💬

The two properties of a DataGrid that has to be specified to turn on sorting and paging respectively are ...
The two properties of a DataGrid that has to be specified to turn on sorting and paging respectively are ... The two properties of a DataGrid that has to be specified to turn on sorting and paging respectively are * EnableSorting = “true” and EnablePaging = “true” * DisableSorting = â... 2014-07-21, 2329👍, 0💬

Why aren't Perl's patterns regular expressions?
Why aren't Perl's patterns regular expressions? Because Perl patterns have backreferences. A regular expression by definition must be able to determine the next state in the finite automaton without requiring any extra memory to keep around previous state. A pattern /([ab]+)c\1/ requires the state m... 2013-09-02, 2327👍, 0💬

Can an abstract class be final?
Can an abstract class be final? An abstract class may not be declared as final. 2013-01-17, 2327👍, 0💬

What Checkbox method allows you to tell if a Checkbox is checked?
What Checkbox method allows you to tell if a Checkbox is checked? getState() 2012-12-31, 2327👍, 0💬

What is meant by "Abstract Interface"?
What is meant by "Abstract Interface"? First, an interface is abstract. That means you cannot have any implementation in an interface. All the methods declared in an interface are abstract methods or signatures of the methods. 2013-04-06, 2325👍, 0💬

What modifiers may be used with a top-level class?
What modifiers may be used with a top-level class? A top-level class may be public, abstract, or final. 2013-01-25, 2325👍, 0💬

In C#, which character is used to indicate a verbatim string literal?
In C#, which character is used to indicate a verbatim string literal? In C#, which character is used to indicate a verbatim string literal? * @ * ! * " * # @ 2014-03-18, 2324👍, 0💬

How is static Synchronization different form non-static synchronization?
How is static Synchronization different form non-static synchronization? When Synchronization is applied on a static Member or a static block, the lock is performed on the Class and not on the Object, while in the case of a Non-static block/member, lock is applied on the Object and not on class. [Tr... 2013-03-19, 2322👍, 0💬

Use the Externalizable interface when you need complete control over your Bean's serialization (for example, when writing and r
Use the Externalizable interface when you need complete control over your Bean's serialization (for example, when writing and reading a specific file format). No. Earlier order is maintained. 2013-03-08, 2321👍, 0💬

Can there be an abstract class with no abstract methods in it?
Can there be an abstract class with no abstract methods in it? yes. 2013-02-01, 2321👍, 0💬

Can you make an instance of an abstract class? For example - java.util.Calender is an abstract class with a method getInstance()
Can you make an instance of an abstract class? For example - java.util.Calender is an abstract class with a method getInstance() which returns an instance of the Calender class. No! You cannot make an instance of an abstract class. An abstract class has to be sub-classed. If you have an abstract cla... 2012-08-21, 2320👍, 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