Uses of Package
java.lang

Packages that use java.lang

java.io
java.lang
java.lang.reflect
java.util

Classes in java.lang used by java.io

Exception
This class is the superclass of all classes which represent recoverable exceptions.

Throwable
The Throwable class is the superclass of all errors and exceptions in the Java language.

Classes in java.lang used by java.lang

Character

CharSequence
The CharSequence interface represents an ordered set of characters and the functions to probe them.

ClassFormatError
This error is thrown by the class loader when it discovers that a class that it is loading does not have the correct shape.

Comparable
This interface should be implemented by all classes which wish to define a natural ordering of their instances.

Error
This class is the superclass of all classes which represent unrecoverable errors.

Exception
This class is the superclass of all classes which represent recoverable exceptions.

IllegalArgumentException
This runtime exception is thrown when a method is invoked with an argument which it can not reasonably deal with.

IncompatibleClassChangeError
This class is the superclass of all classes which represent errors which occur when inconsistant class files are loaded into the same running image.

IndexOutOfBoundsException
This runtime exception is thrown when a program attempts to access a value in an indexable collection using a value which is outside the possible range of indices.

InterruptedException
This exception is thrown when a waiting thread is activated before the condition it was waiting on has been satisfied.

LinkageError
This class is the superclass of all classes which represent errors that occur when loading and linking class files.

Runnable
The runnable interface must be implemented by all classes which want to be run as threads.

RuntimeException
This class is the superclass of all classes which represent exceptional conditions which occur as a result of the running of the virtual machine.

StackTraceElement
An element in a stack trace, as returned by Throwable.getStackTrace().

StringBuffer
A string buffer implements a mutable sequence of characters.

Thread

ThreadGroup

Throwable
The Throwable class is the superclass of all errors and exceptions in the Java language.

VirtualMachineError
This class is the superclass of all classes which represent errors that occur during the operation of the virtual machine.

Classes in java.lang used by java.lang.reflect

ArrayIndexOutOfBoundsException
This runtime exception is thrown when the an array is indexed with a value less than zero, or greater than or equal to the size of the array.

ClassFormatError
This error is thrown by the class loader when it discovers that a class that it is loading does not have the correct shape.

Error
This class is the superclass of all classes which represent unrecoverable errors.

Exception
This class is the superclass of all classes which represent recoverable exceptions.

IllegalAccessException
This exception is thrown when a program attempts to access a field or method which is not accessible from the location where the reference is made.

IllegalArgumentException
This runtime exception is thrown when a method is invoked with an argument which it can not reasonably deal with.

InstantiationException
This exception is thrown when a program attempts to access a constructor which is not accessible from the location where the reference is made.

LinkageError
This class is the superclass of all classes which represent errors that occur when loading and linking class files.

NegativeArraySizeException
This runtime exception is thrown when an attempt is made to create an array whose size would be less than zero.

RuntimeException
This class is the superclass of all classes which represent exceptional conditions which occur as a result of the running of the virtual machine.

SecurityException
This runtime exception is thrown when a security manager check fails.

Throwable
The Throwable class is the superclass of all errors and exceptions in the Java language.

Classes in java.lang used by java.util

Cloneable
This (empty) interface should be implemented by all classes which wish to support cloning.

Exception
This class is the superclass of all classes which represent recoverable exceptions.

IllegalArgumentException
This runtime exception is thrown when a method is invoked with an argument which it can not reasonably deal with.

IllegalStateException
This runtime exception is thrown when an action is attempted at a time when the virtual machine is not in the correct state.

Iterable
Implementations of this interface can be used within a foreach statement.

RuntimeException
This class is the superclass of all classes which represent exceptional conditions which occur as a result of the running of the virtual machine.

Throwable
The Throwable class is the superclass of all errors and exceptions in the Java language.