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If I do not provide any arguments on the command line, then the String array of Main method will be empty or null?
If I do not provide any arguments on the command line, then the String array of Main method will be empty or null? It is empty. But not null. 2013-05-06, 3035👍, 0💬

What is the software Life-Cycle?
What is the software Life-Cycle? The software Life-Cycle are 1) Analysis and specification of the task 2) Design of the algorithms and data structures 3) Implementation (coding) 4) Testing 5) Maintenance and evolution of the system 6) Obsolescence 2012-04-12, 3035👍, 0💬

Can you call one constructor from another if a class has multiple constructors?
Can you call one constructor from another if a class has multiple constructors? Yes. Use this() syntax. 2012-09-06, 3034👍, 0💬

Explain the life cycle of JSP?
Explain the life cycle of JSP? Any JSP page goes through 7 phases in its entire lifecycle Phase Name Description Page translation The page is parsed and a Java file containing the corresponding servlet is created. Page compilation The Java file is compiled. Load class The compiled class is loaded. C... 2013-08-15, 3032👍, 0💬

What is the default value of the local variables?
What is the default value of the local variables? The local variables are not initialized to any default value, neither primitives nor object references. If you try to use these variables without initializing them explicitly, the java compiler will not compile the code. It will complain abt the loca... 2013-07-01, 3025👍, 0💬

What’s the best way to declare and define global variables?
What’s the best way to declare and define global variables? The best way to declare global variables is to declare them after including all the files so that it can be used in all the functions. 2012-03-06, 3025👍, 0💬

In the derived class, which data member of the base class are visible?
In the derived class, which data member of the base class are visible? In the public and protected sections. 2012-01-23, 3025👍, 0💬

Why do threads block on I/O?
Why do threads block on I/O? Threads block on I/O (that is enters the waiting state) so that other threads may execute while the I/O Operation is performed. 2012-09-14, 3024👍, 0💬

Why do we need to use getSystemResource() and getSystemResources() method to load resources?
Why do we need to use getSystemResource() and getSystemResources() method to load resources? Because we want to look for resources strictly from the system classpath, These methods use the system ClassLoader to locate resources, which gives you stricter control of the resources used by the applicati... 2012-09-12, 3024👍, 0💬

What are the conditions that have to be met for a condition to be an invariant of the class?
What are the conditions that have to be met for a condition to be an invariant of the class? * The condition should hold at the end of every constructor. * The condition should hold at the end of every mutator (non-const) operation. 2012-01-12, 3024👍, 0💬

Name some major differences between C++ and Java.
Name some major differences between C++ and Java. C++ has pointers; Java does not. Java is platform-independent; C++ is not. Java has garbage collection; C++ does not. Java does have pointers. In fact all variables in Java are pointers. The difference is that Java does not allow you to manipulate th... 2012-04-10, 3022👍, 0💬

What is scalability and performance?
What is scalability and performance? Performance is a measure of "how fast can you perform this task." and scalability describes how an application behaves as its workload and available computing resources increase. 2012-08-16, 3020👍, 0💬

What is the difference between realloc() and free()?
What is the difference between realloc() and free()? The free subroutine frees a block of memory previously allocated by the malloc subroutine. Undefined results occur if the Pointer parameter is not a valid pointer. If the Pointer parameter is a null value, no action will occur. The realloc subrout... 2012-01-24, 3016👍, 0💬

When you apply C driver patch does it require database to be Up and Why ?
When you apply C driver patch does it require database to be Up and Why ? Yes , database and db listener should be Up when you apply any driver patch in application. even if driver is not updating any database object connection is required to validate application and other schema and to upload patch... 2011-12-02, 3013👍, 0💬

How can you debug failed assembly binds?
How can you debug failed assembly binds? Use the Assembly Binding Log Viewer (fuslogvw.exe) to find out the paths searched. 2014-12-19, 3012👍, 0💬

What is the above sample code an example of?
class Foo; What is the above sample code an example of? 1) A class constructor 2) A class object instantiation 3) A class definition 4) A class declaration 5) A syntax error 2012-04-25, 3012👍, 0💬

Write a program that ask for user input from 5 to 9 then calculate the average
Write a program that ask for user input from 5 to 9 then calculate the average #include "iostream.h" int main() { int MAX = 4; int total = 0; int average; int numb; for (int i=0; i&lt;MAX; i++) { cout &lt;&lt; "Please enter your input between 5 and 9: "; cin &gt;&gt; numb; while ... 2012-01-27, 3012👍, 0💬

Can we override the jspInit(), _jspService() and jspDestroy() methods?
Can we override the jspInit(), _jspService() and jspDestroy() methods? We can override jspinit() and jspDestroy() methods but not _jspService(). 2013-08-14, 3010👍, 0💬

What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?
What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class? Strategically speaking, threads created by implementing Runnable interface are more advisable. If you create a thread by extending a thread class, you cannot extend any other class. If you c... 2012-05-17, 3009👍, 0💬

How do I do fill_in_the_blank for each file in a directory?
How do I do fill_in_the_blank for each file in a directory? Here's code that just prints a listing of every file in the current directory: #!/usr/bin/perl -w opendir(DIR, "."); @files = readdir(DIR); closedir(DIR); foreach $file (@files) { print "$file\n"; } 2013-08-23, 3008👍, 0💬

When is a template a better solution than a base class?
When is a template a better solution than a base class? When you are designing a generic class to contain or otherwise manage objects of other types, when the format and behavior of those other types are unimportant to their containment or management, and particularly when those other types are unkn... 2012-03-20, 3008👍, 0💬

Is String a primitive data type in Java?
Is String a primitive data type in Java? No String is not a primitive data type in Java, even though it is one of the most extensively used object. Strings in Java are instances of String class defined in java.lang package. 2013-06-25, 3007👍, 0💬

Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through
Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through data [321]. quicksort ((data + 222), 100); 2012-02-20, 3007👍, 0💬

What problems might the following macro bring to the application?
What problems might the following macro bring to the application? #define sq(x) x*x 2012-03-02, 3005👍, 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