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Describe the java.lang package ?
Each package describes a number of classes, exceptions, interfaces, and errors. For instance, in Java 1.1 the java.lang package holds these:
Interfaces in java.lang• Cloneable • Runnable Classes in java.lang• Boolean • Byte • Character • Class • ClassLoader • Compiler • Double • Float • Integer • Long • Math • Number • Object • Process • Runtime • SecurityManager • Short • String • StringBuffer • System • Thread • ThreadGroup • Throwable • Void Exceptions in java.lang• ArithmeticException • ArrayIndexOutOfBoundsException • ArrayStoreException • ClassCastException • ClassNotFoundException • CloneNotSupportedException • Exception • IllegalAccessException • IllegalArgumentException • IllegalMonitorStateException • IllegalStateException • IllegalThreadStateException • IndexOutOfBoundsException • InstantiationException • InterruptedException • NegativeArraySizeException • NoSuchFieldException • NoSuchMethodException • NullPointerException • NumberFormatException • RuntimeException • SecurityException • StringIndexOutOfBoundsException Errors in java.lang• AbstractMethodError • ClassCircularityError • ClassFormatError • Error • ExceptionInInitializerError • IllegalAccessError • IncompatibleClassChangeError • InstantiationError • InternalError • LinkageError • NoClassDefFoundError • NoSuchFieldError • NoSuchMethodError • OutOfMemoryError • StackOverflowError • ThreadDeath • UnknownError • UnsatisfiedLinkError • VerifyError • VirtualMachineError
Java Message Service: An interface executed by most J2EE containers to give point-to-point queueing and topic (publish/subscribe) behavior. JMS is frequently used by EJB's that req
What is an Applets? Applets: These are small java programs. They can send from one to another computer over internet by using Applet Viewer which supports java. Applets
Did Java support hybrid inheritance?
State about the performance of java First versions of java were pretty slow. Java performance has gotten a lot better with aggressive just-in-time-compiler (JIT) techniques
Determine how many arguments were passed using length property In java, array knows their size by using the length property. By using, length property we can determine how many
Employee application Project Description: Subsequent Technology should be used 1) UI (jsp, jstl ,html, etc) 2) Framework (Spring MVC and hibernate) 3) Database (MYSQ
What is PortableRemoteObject.narrow() method and what is used for? Ans) Java RMI-IIOP gives a mechanism to narrow the the Object you have received from from your
What is Documentation for the class library Sun gives a large amount of documentation for the classes, interface's and exceptions in the class library. If you've installed the
Difference between Hash Map and Hash Table? The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and allows nulls. (HashMap allows null values
State in brief about the java Java is a object-oriented, simple, distributed, robust, interpreted, architecture-neutral, secure, portable, multi-threaded, high- performance and
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