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Java 是数组或集合类型

欢马劈雪

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发表于实例源码

466

是数组或集合类型

实例源码：

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* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*     http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

//package com.nowjava;

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

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

String type = "nowjava.com";

System.out.println(isArrayOrCollection(type));

}

public static boolean isArrayOrCollection(String type) {

return isCollection(type) || isArray(type);

}
/**from N o w J a v a . c o m**/

public static boolean isCollection(String type) {

return isList(type) || isSet(type);

}

public static boolean isArray(String type) {

return type != null

&& (type.startsWith("[") && type.length() >= 2

&& getArrayType(type) != null || type

.endsWith("[]"));

}

public static boolean isList(String type) {

return "java.util.List".equals(type);

}

public static boolean isSet(String type) {

return "java.util.Set".equals(type);

}

public static Class getArrayType(String type) {

if (type.endsWith("[]")) {

try {

return Class.forName(type.substring(0, type.length() - 2));

} catch (ClassNotFoundException e) {

throw new RuntimeException("Wrong array type");

}

switch (type.substring(0, 2)) {

case "[Z":

return boolean.class;

case "[B":

return byte.class;

case "[S":

return short.class;

case "[I":
/**代码未完, 请加载全部代码(NowJava.com).**/

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本文系作者在时代Java发表，未经许可，不得转载。如有侵权，请联系nowjava@qq.com删除。

编辑于 2020-03-26 09:23:272020-03-26 09:23:27

实例源码

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