.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

<< < … 13 14 15 16 17 18 19 20 21 22 23 … > >>   Sort: Date

How many times may an object's finalize() method be invoked by the garbage collector?
How many times may an object's finalize() method be invoked by the garbage collector? An object's finalize() method may only be invoked once by the garbage collector. 2012-10-23, 2448👍, 0💬

What is the % operator?
What is the % operator? It is referred to as the modulo or remainder operator. It returns the remainder of dividing the first operand by the second operand. 2012-11-09, 2447👍, 0💬

What is the GregorianCalendar class?
What is the GregorianCalendar class? The GregorianCalendar provides support for traditional Western calendars. 2012-10-19, 2447👍, 0💬

What is Incremental Low Pause Collector?
What is Incremental Low Pause Collector? The incremental low pause collector is a generational collector similar to the default collector. The minor collections are done with the same young generation collector as the default collector. Do not use either -XX:+UseParallelGC or -XX:+UseParNewGC with t... 2013-03-27, 2445👍, 0💬

What classes of exceptions may be caught by a catch clause?
What classes of exceptions may be caught by a catch clause? A catch clause can catch any exception that may be assigned to the Throwable type. This includes the Error and Exception types. 2012-11-15, 2444👍, 0💬

State the significance of public, private, protected, default modifiers both singly and in combination and state the effect of
State the significance of public, private, protected, default modifiers both singly and in combination and state the effect of package relationships on declared items qualified by these modifiers. public : Public class is visible in other packages, field is visible everywhere (class must be public t... 2013-04-30, 2442👍, 0💬

What modifiers may be used with an inner class that is a member of an outer class?
What modifiers may be used with an inner class that is a member of an outer class? A (non-local) inner class may be declared as public, protected, private, static, final, or abstract. 2012-09-25, 2442👍, 0💬

Can I import same package/class twice? Will the JVM load the package twice at runtime?
Can I import same package/class twice? Will the JVM load the package twice at runtime? One can import the same package or same class multiple times. Neither compiler nor JVM complains abt it. And the JVM will internally load the class only once no matter how many times you import the same class. 2013-05-09, 2441👍, 0💬

Which containers use a FlowLayout as their default layout?
Which containers use a FlowLayout as their default layout? The Panel and Applet classes use the FlowLayout as their default layout. 2013-04-09, 2440👍, 0💬

What is the basic difference between the 2 approaches to exception handling.
520. What is the basic difference between the 2 approaches to exception handling. 1. try catch block and 2. specifying the candidate exceptions in the throws clause? When should you use which approach? In the first approach as a programmer of the method, you urself are dealing with the exception. Th... 2013-06-03, 2438👍, 0💬

What is the difference between a public and a non-public class?
What is the difference between a public and a non-public class? A public class may be accessed outside of its package. A non-public class may not be accessed outside of its package. 2013-01-22, 2438👍, 0💬

Does garbage collection guarantee that a program will not run out of memory?
Does garbage collection guarantee that a program will not run out of memory? Garbage collection does not guarantee that a program will not run out of memory. It is possible for programs to use up memory resources faster than they are garbage collected. It is also possible for programs to create obje... 2012-10-02, 2438👍, 0💬

What are E and PI?
What are E and PI? E is the base of the natural logarithm and PI is mathematical value pi. 2013-01-04, 2437👍, 0💬

What is serialization?
What is serialization? Serialization is a mechanism by which you can save the state of an object by converting it to a byte stream. 2013-05-17, 2434👍, 0💬

Describe synchronization in respect to multithreading.
Describe synchronization in respect to multithreading. With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchonization, it is possible for one thread to modify a shared variable while another thread is in the pro... 2013-04-23, 2434👍, 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 ... 2013-06-13, 2432👍, 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. 2013-02-12, 2432👍, 0💬

What invokes a thread's run() method?
What invokes a thread's run() method? After a thread is started, via its start() method or that of the Thread class, the JVM invokes the thread's run() method when the thread is initially executed. 2012-10-18, 2432👍, 0💬

What is the Locale class?
What is the Locale class? The Locale class is used to tailor program output to the conventions of a particular geographic, political, or cultural region. 2013-06-11, 2431👍, 0💬

What is a Concurrent Low Pause Collector?
What is a Concurrent Low Pause Collector? The concurrent low pause collector is a generational collector similar to the default collector. The tenured generation is collected concurrently with this collector. This collector attempts to reduce the pause times needed to collect the tenured generation.... 2013-03-26, 2431👍, 0💬

To what value is a variable of the boolean type automatically initialized?
To what value is a variable of the boolean type automatically initialized? The default value of the boolean type is false. 2013-01-22, 2431👍, 0💬

What is numeric promotion?
What is numeric promotion? Numeric promotion is the conversion of a smaller numeric type to a larger numeric type, so that integer and floating-point operations may take place. In numerical promotion, byte, char, and short values are converted to int values. The int values are also converted to long... 2013-01-21, 2430👍, 0💬

Can Java code be compiled to machine dependent executable file?
Can Java code be compiled to machine dependent executable file? Yes. There are many tools out there. If you did so, the generated exe file would be run in the specific platform, not cross-platform. 2013-04-06, 2427👍, 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. 2012-08-08, 2427👍, 0💬

<< < … 13 14 15 16 17 18 19 20 21 22 23 … > >>   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