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What happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body
What happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body of the try statement? The exception propagates up to the next higher level try-catch statement (if any) or results in the program's termination. 2013-01-18, 2272👍, 0💬

What is difference between custom JSP tags and beans?
What is difference between custom JSP tags and beans? Custom JSP tag is a tag you defined. You define how a tag, its attributes and its body are interpreted, and then group your tags into collections called tag libraries that can be used in any number of JSP files. To use custom JSP tags, you need t... 2013-07-04, 2271👍, 0💬

ASP.NET interview questions only (1)
ASP.NET interview questions only (1) 1. Describe the difference between a Thread and a Process? 2. What is a Windows Service and how does its lifecycle differ from a .standard. EXE? 3. What is the maximum amount of memory any single process on Windows can address? Is this different than the maximum ... 2014-01-07, 2270👍, 0💬

Can an Interface have an inner class?
Can an Interface have an inner class? Yes public interface abc { static int i=0; void dd(); class a1 { a1() { int j; System.out.println("in interfia"); }; public static void main(String a1[]) { System.out.println("in interfia"); } } } 2013-02-04, 2270👍, 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, 2270👍, 0💬

What is JIT?
What is JIT? JIT stands for Just In Time compiler. It compiles java byte code to native code. 2013-03-13, 2269👍, 0💬

How do I set environment variables in Perl programs?
How do I set environment variables in Perl programs? you can just do something like this: $ENV{'PATH'} = '...'; As you may remember, "%ENV" is a special hash in Perl that contains the value of all your environment variables. Because %ENV is a hash, you can set environment variables just as you'd set... 2013-08-21, 2268👍, 0💬

Does Java provide any construct to find out the size of an object?
Does Java provide any construct to find out the size of an object? No there is not sizeof operator in Java. So there is not direct way to determine the size of an object directly in Java. 2013-05-24, 2267👍, 0💬

What happens to the static fields of a class during serialization?
What happens to the static fields of a class during serialization? There are three exceptions in which serialization doesnot necessarily read and write to the stream. These are 1. Serialization ignores static fields, because they are not part of ay particular state state. 2. Base class fields are on... 2013-05-23, 2267👍, 0💬

What are Access Specifiers available in Java?
What are Access Specifiers available in Java? ccess specifiers are keywords that determines the type of access to the member of a class. These are: Public Protected Private Defaults 2013-03-04, 2267👍, 0💬

What are the Object and Class classes used for?
What are the Object and Class classes used for? The Object class is the highest-level class in the Java class hierarchy. The Class class is used to represent the classes and interfaces that are loaded by a Java program. 2013-01-25, 2267👍, 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, 2266👍, 0💬

What is HashMap and Map?
What is HashMap and Map? Map is Interface and Hashmap is class that implements that. 2013-04-25, 2265👍, 0💬

Describe the wrapper classes in Java.
Describe the wrapper classes in Java. Wrapper class is wrapper around a primitive data type. An instance of a wrapper class contains, or wraps, a primitive value of the corresponding type. Following table lists the primitive types and the corresponding wrapper classes: Primitive Wrapper boolean java... 2013-03-05, 2264👍, 0💬

What are runtime exceptions?
What are runtime exceptions? Runtime exceptions are those exceptions that are thrown at runtime because of either wrong input data or because of wrong business logic etc. These are not checked by the compiler at compile time. 2013-05-28, 2263👍, 0💬

What is the serialization?
What is the serialization? The serialization is a kind of mechanism that makes a class or a bean persistence by having its properties or fields and state information saved and restored to and from storage. 2013-02-25, 2263👍, 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, 2263👍, 0💬

What is an Iterator interface?
What is an Iterator interface? The Iterator interface is used to step through the elements of a Collection. 2012-09-26, 2262👍, 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, 2261👍, 0💬

How do I serialize an object to a file?
How do I serialize an object to a file? The class whose instances are to be serialized should implement an interface Serializable. Then you pass the instance to the ObjectOutputStream which is connected to a fileoutputstream. This will save the object to a file. 2013-05-20, 2260👍, 0💬

Why are the methods of the Math class static?
Why are the methods of the Math class static? So they can be invoked as if they are a mathematical code library. 2012-12-28, 2260👍, 0💬

Can an exception be rethrown?
Can an exception be rethrown? Yes, an exception can be rethrown. 2012-12-13, 2259👍, 0💬

what is Application testing
Why is it important to test applications before the product reaches the end user? The software can hold deviations, which can lead to a loss in trust from supplier From contract and leagal point of view, it is important that the product has been tested properly To assure that manuals are correct 2014-11-24, 2258👍, 0💬

I want users send data by formmail but when they send nothing or call it from web site they will see error ....
I want users send data by formmail but when they send nothing or call it from web site they will see error. codes in PHP like this: if (isset($HTTP_POST_VARS)){ .......... } else{ echo ("error lalalalal") } How it will look in perl? In php it will be like if (isset($HTTP_POST_VARS)){ .... } In perl,... 2013-08-30, 2258👍, 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