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Java 指示给定的类或方法是否抽象。

欢马劈雪

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指示给定的类或方法是否抽象。

实例源码：

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//package com.nowjava;

public class Main {
/*
来 自*
 时代Java - N o w  J a v a . c o m
*/

public static void main(String[] argv) throws Exception {

int access = 2;

System.out.println(isAbstract(access));

}

/**

* The access flag mask for the <code>abstract</code> keyword. This

* keyword is usually also present with the

* {@link ByteCodeUtils#ACCESS_INTERFACE}

* and

* {@link ByteCodeUtils#ACCESS_ANNOTATION}

* flags for classes. In both of these cases, this flag will be

* ignored as both of those types infer <code>abstract</code>. This

* will only be present in method and class access flags.

* @see ByteCodeUtils#isAbstract(int)

private static final int ACCESS_ABSTRACT = 0x0400;

/**

* Indicates whether or not the given class or method is

* <code>abstract</code>.

* <p>

* For <code>interface</code> types and <code>annotation</code> types,

* this is inferred and therefore may not appear in the access flag

* names even if set.

* <p>

* Although it is also true that this is inferred for the methods of

* said types, it cannot be ensured and therefore this will appear in

* the method access flag names for <code>interface</code> types and

* for <code>annotation</code> types.

* @param access The access flags for the class or method.
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编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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