java.lang
インタフェース 
Runnable
クラス 
Boolean
Byte
Character
Class
Integer
Long
Math
Object
Runtime
Short
String
StringBuffer
System
Thread
Throwable
例外 
ArithmeticException
ArrayIndexOutOfBoundsException
ArrayStoreException
ClassCastException
ClassNotFoundException
Exception
IllegalAccessException
IllegalArgumentException
IllegalMonitorStateException
IllegalThreadStateException
IndexOutOfBoundsException
InstantiationException
InterruptedException
NegativeArraySizeException
NullPointerException
NumberFormatException
RuntimeException
SecurityException
StringIndexOutOfBoundsException
エラー 
Error
OutOfMemoryError
VirtualMachineError