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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
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code for correlation of coeficient
What is an abstract class? Abstract class must be extended/subclassed (to be useful). It serves as a template. A class that is abstract may not be instantiated (ie. you may not
Using the above thread program, now create 20 threads in your program and run them. No need to wait for the keyboard in each thread, just print "Hello" and its thread id in each t
What 'System.out.println()' signifies? 'System' is a predefined class. System class gives access to the system. 'out' is the output stream. 'println' is printin
Why You don't need to import java.lang.* There is one exception to the import rule. All classes in the java.lang package are imported by default. Therefore you do not required
For this assignment you'll create some classes for modeling tickets for a city subway system. The type of system we are modeling has these main features: Stations are grouped in
Explain init(), start(), stop(), and destroy() method? The init() method is known as exactly once in an applet's life, while the applet is first loaded. It's generally used to
in java string is a
My name is Myers, the project director of an online business that is scheduled to commence this summer in Nigeria. We are in the process of recruiting members to the project team a
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