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Java 返回指定类实现的所有接口，包括超类实现的所有接口。
返回指定类实现的所有接口，包括超类实现的所有接口。
实例源码：
源代码：
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/*2
N o w J a v a . c o m3
*/4
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//package com.nowjava;7
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import java.util.ArrayList;9
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import java.util.Arrays;11
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import java.util.Collections;13
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import java.util.HashSet;15
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import java.util.List;17
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import java.util.Set;19
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public class Main {22
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public static void main(String[] argv) throws Exception {24
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Class clazz = String.class;26
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System.out.println(java.util.Arrays28
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.toString(getImplementedInterfaces(clazz)));30
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}32
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/* from 34
n o w j a v a . c o m - 时 代 Java*/35
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/**37
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* Returns all interfaces implemented by the specified class39
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* including all interfaces implemented by super classes.41
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* If the specified class is itself an interfaces or the43
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* specified class does not implement any interfaces, this45
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* method returns an empty array.47
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* @param clazz the Class49
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* @return all interfaces implemented by the specified class51
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*/53
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public static Class[] getImplementedInterfaces(Class clazz) {55
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if (clazz.isInterface())57
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return new Class[0];59
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Class[] classes = getInheritanceHierarchy(clazz);61
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Set interfaceSet = new HashSet();63
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for (int ii = 0; ii < classes.length; ii++) {65
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interfaceSet.addAll(Arrays.asList(classes[ii].getInterfaces()));67
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}69
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return (Class[]) interfaceSet71
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.toArray(new Class[interfaceSet.size()]);73
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}75
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/**78
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* Returns the inheritance hierarchy of the specified class.80
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* The returned array includes all superclasses of the specified class82
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* starting with the most general superclass, which is84
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* <code>java.lang.Object</code>. The returned array also86
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* includes the class itself as the last element. Implemented88
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* interfaces are not included.90
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* @param clazz the Class92
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* @return all superclasses, most general superclass first94
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*/96
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public static Class[] getInheritanceHierarchy(Class clazz) {98
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