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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, 2364👍, 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, 2364👍, 0💬

When does the compiler supply a default constructor for a class?
When does the compiler supply a default constructor for a class? The compiler supplies a default constructor for a class if no other constructors are provided. 2012-12-14, 2364👍, 0💬

Which of the following operators has the highest precedence?
Which of the following operators has the highest precedence? * Pre Increment (++x) * Shift bits left: &lt;&lt; * Bitwise Or: | * Post Increment (x++) Shift bits left 2014-03-19, 2363👍, 0💬

If we develop an application that must accommodate multiple security levels through secure login and ASP.NET web application is
If we develop an application that must accommodate multiple security levels through secure login and ASP.NET web application is spanned across three web-servers (using round-robin load balancing) what would be the best approach to maintain login-in state for the users? If we develop an application t... 2014-08-27, 2361👍, 0💬

What restrictions are placed on method overloading?
What restrictions are placed on method overloading? Two methods may not have the same name and argument list but different return types. 2012-12-19, 2360👍, 0💬

What will be the output on executing the following code .
What will be the output on executing the following code . What will be the output on executing the following code. public class MyClass { public static void main (String args[] ) { int abc[] = new int [5]; System.out.println(abc); } } A Error array not initialized B 5 C null D Print some junk charac... 2013-03-08, 2359👍, 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, 2358👍, 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, 2358👍, 0💬

How you can force the garbage collection?
How you can force the garbage collection? Garbage collection automatic process and can't be forced. 2013-02-27, 2358👍, 0💬

What is the difference between ADO and ADO.NET?
What is the difference between ADO and ADO.NET? ADO uses Recordsets and cursors to access and modify data. Because of its inherent design, Recordset can impact performance on the server side by tying up valuable resources. In addition, COM marshalling - an expensive data conversion process - is need... 2013-10-07, 2356👍, 0💬

What is GAC?
What is GAC? The global assembly cache stores assemblies specifically designated to be shared by several applications on the computer. You should share assemblies by installing them into the global assembly cache only when you need to. Assemblies deployed in the global assembly cache must have a str... 2013-10-25, 2355👍, 0💬

Why can't I say just abs() or sin() instead of Math.abs() and Math.sin()?
Why can't I say just abs() or sin() instead of Math.abs() and Math.sin()? The import statement does not bring methods into your local name space. It lets you abbreviate class names, but not get rid of them altogether. That's just the way it works, you'll get used to it. It's really a lot safer this ... 2013-02-15, 2355👍, 0💬

How do I sort a hash by the hash key?
How do I sort a hash by the hash key? Suppose we have a class of five students. Their names are kim, al, rocky, chrisy, and jane. Here's a test program that prints the contents of the grades hash, sorted by student name: #!/usr/bin/perl -w %grades = ( kim => 96, al => 63, rocky => 87, chrisy => 96, ... 2013-09-03, 2354👍, 0💬

What is a Throughput Collector?
What is a Throughput Collector? The throughput collector is a generational collector similar to the default collector but with multiple threads used to do the minor collection. The major collections are essentially the same as with the default collector. By default on a host with N CPUs, the through... 2013-03-25, 2354👍, 0💬

What are class members and Instance members?
What are class members and Instance members? Any global members(Variables, methods etc.) which are static are called as Class level members and those which are non-static are called as Instance level members. 2013-03-19, 2353👍, 0💬

How can we make a class Singleton
How can we make a class Singleton A) If the class is Serializable class Singleton implements Serializable { private static Singleton instance; private Singleton() { } public static synchronized Singleton getInstance() { if (instance == null) instance = new Singleton(); return instance; } /** If the ... 2013-03-18, 2351👍, 0💬

What is the output of the following Perl program?
What is the output of the following Perl program? 1 $p1 = "prog1.java"; 2 $p1 =~ s/(.*)\.java/$1.cpp/; 3 print "$p1\n"; prog1.cpp 2013-08-30, 2350👍, 0💬

What is OOPS?
What is OOPS? OOP is the common abbreviation for Object-Oriented Programming. 2013-02-27, 2350👍, 0💬

What is a marker interface ?
What is a marker interface ? An interface that contains no methods. Eg: Serializable, Cloneable, SingleThreadModel etc. It is used to just mark java classes that support certain capability. 2013-03-11, 2347👍, 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, 2345👍, 0💬

ASP.NET interview questions only (2)
ASP.NET interview questions only (2) 1. What is a static class? 2. What is static member? 3. What is static function? 4. What is static constructor? 5. How can we inherit a static variable? 6. How can we inherit a static member? 7. Can we use a static function with a non-static variable? 8. How can ... 2014-01-08, 2343👍, 0💬

What are new language features in J2SE 5.0?
What are new language features in J2SE 5.0? Generally: 1. generics 2. static imports 3. annotations 4. typesafe enums 5. enhanced for loop 6. autoboxing/unboxing 7. varargs 8. covariant return types 2013-03-07, 2343👍, 0💬

Name four Container classes.
Name four Container classes. Window, Frame, Dialog, FileDialog, Panel, Applet, or ScrollPane 2012-12-21, 2343👍, 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