Object类的内容

Object类共12个方法

2个public
boolean equals(Object obj) : this == obj
String toString(): getClass().getName() + “@” +Integer.toHexString(hascode())

1个public native
int hashCode()

2个public final
wait()
wait(long timeout,int nanos)

4个public final native
Class<?> getClass()
notify()
notifyAll()
wait(long timeout)

1个protected
finalize()

1个protected native
clone()

1个private static native
registernatives()
用来注册5个本地方法