.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

<< < … 138 139 140 141 142 143 144 145 146 147 148 … > >>   Sort: Date

When is the finally clause of a try-catch-finally statement executed?
When is the finally clause of a try-catch-finally statement executed? The finally clause of the try-catch-finally statement is always executed unless the thread of execution terminates or an exception occurs within the execution of the finally clause. 2012-12-17, 2333👍, 0💬

Why do you use Perl?
Why do you use Perl? Perl is a powerful free interpreter. Perl is portable, flexible and easy to learn. 2013-08-21, 2332👍, 0💬

WWhat is the difference between static and non-static variables?
WWhat is the difference between static and non-static variables? A static variable is associated with the class as a whole rather than with specific instances of a class. Non-static variables take on unique values with each object instance. 2013-06-12, 2331👍, 0💬

Describe the principles of OOPS
Describe the principles of OOPS There are three main principals of oops which are called Polymorphism, Inheritance and Encapsulation. 2013-02-28, 2331👍, 0💬

Why are there no global variables in Java?
Why are there no global variables in Java? Global variables are considered bad form for a variety of reasons: · Adding state variables breaks referential transparency (you no longer can understand a statement or expression on its own: you need to understand it in the context of the settings of the ... 2013-02-18, 2331👍, 0💬

You need to generate a public/private key pair for using in creating a shared assembly. Given the above scenario, which .NET SDK
You need to generate a public/private key pair for using in creating a shared assembly. Given the above scenario, which .NET SDK utility should be used? You need to generate a public/private key pair for using in creating a shared assembly. Given the above scenario, which .NET SDK utility should be ... 2014-03-17, 2330👍, 0💬

What are synchronized methods and synchronized statements?
What are synchronized methods and synchronized statements? Synchronized methods are methods that are used to control access to an object. A thread only executes a synchronized method after it has acquired the lock for the method's object or class. Synchronized statements are similar to synchronized ... 2013-06-18, 2330👍, 0💬

What are checked exceptions?
What are checked exceptions? Checked exception are those which the Java compiler forces you to catch. e.g. IOException are checked Exceptions. 2013-05-28, 2330👍, 0💬

What is Service Locator pattern?
What is Service Locator pattern? The Service Locator pattern locates J2EE (Java 2 Platform, Enterprise Edition) services for clients and thus abstracts the complexity of network operation and J2EE service lookup as EJB (Enterprise JavaBean) Home and JMS (Java Message Service) component factories. Th... 2013-03-14, 2329👍, 0💬

Is &&= a valid Java operator?
Is &&= a valid Java operator? No, it is not. 2012-11-29, 2329👍, 0💬

Which operator is used for connecting a event with a procedure in C#?
Which operator is used for connecting a event with a procedure in C#? Which operator is used for connecting a event with a procedure in C#? * += * = * both * none += 2014-06-23, 2328👍, 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, 2328👍, 0💬

What are the steps in the JDBC connection?
What are the steps in the JDBC connection? While making a JDBC connection we go through the following steps : Step 1 : Register the database driver by using : Class.forName(" driver classs for that specific database" ); Step 2 : Now create a database connection using : Connection con = DriverManager... 2013-06-15, 2326👍, 0💬

What are generations in Garbage Collection terminolgy? What is its relevance?
What are generations in Garbage Collection terminolgy? What is its relevance? Garbage Collectors make assumptions about how our application runs. Most common assumption is that an object is most likely to die shortly after it was created: called infant mortality. This assumes that an object that has... 2013-03-22, 2326👍, 0💬

What are three ways in which a thread can enter the waiting state?
What are three ways in which a thread can enter the waiting state? A thread can enter the waiting state by invoking its sleep() method, by blocking on I/O, by unsuccessfully attempting to acquire an object's lock, or by invoking an object's wait() method. It can also enter the waiting state by invok... 2013-01-17, 2326👍, 0💬

What advantage do Java's layout managers provide over traditional windowing systems?
What advantage do Java's layout managers provide over traditional windowing systems? Java uses layout managers to lay out components in a consistent manner across all windowing platforms. Since Java's layout managers aren't tied to absolute sizing and positioning, they are able to accommodate platfo... 2012-12-10, 2326👍, 0💬

What is the Java API?
What is the Java API? The Java API is a large collection of ready-made software components that provide many useful capabilities, such as graphical user interface (GUI) widgets. 2013-02-20, 2323👍, 0💬

What class of exceptions are generated by the Java run-time system?
What class of exceptions are generated by the Java run-time system? The Java runtime system generates RuntimeException and Error exceptions. 2012-12-24, 2323👍, 0💬

What is a Java package and how is it used?
What is a Java package and how is it used? A Java package is a naming context for classes and interfaces. A package is used to create a separate name space for groups of classes and interfaces. Packages are also used to organize related classes and interfaces into a single API unit and to control ac... 2013-01-24, 2322👍, 0💬

What restrictions are placed on method overriding?
What restrictions are placed on method overriding? Overridden methods must have the same name, argument list, and return type. The overriding method may not limit the access of the method it overrides. The overriding method may not throw any exceptions that may not be thrown by the overridden method... 2013-01-14, 2322👍, 0💬

What is a void return type?
What is a void return type? A void return type indicates that a method does not return a value. 2013-01-07, 2322👍, 0💬

What is Overriding?
What is Overriding? When a class defines a method using the same name, return type, and arguments as a method in its superclass, the method in the class overrides the method in the superclass. When the method is invoked for an object of the class, it is the new definition of the method that is calle... 2013-05-10, 2321👍, 0💬

When to Use the Incremental Low Pause Collector?
When to Use the Incremental Low Pause Collector? Use the incremental low pause collector when your application can afford to trade longer and more frequent young generation garbage collection pauses for shorter tenured generation pauses. A typical situation is one in which a larger tenured generatio... 2013-03-28, 2321👍, 0💬

The superclass constructor runs before the subclass constructor ...
The superclass constructor runs before the subclass constructor ... The superclass constructor runs before the subclass constructor. The subclass's version of the overridable method will be invoked before the subclass's constructor has been invoked. If the subclass's overridable method depends on th... 2013-03-06, 2321👍, 0💬

<< < … 138 139 140 141 142 143 144 145 146 147 148 … > >>   Sort: Date

.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