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Java 从数组实体获取大小。
从数组实体获取大小。
实例源码：
源代码：
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//package com.nowjava;/** 时代Java公众号 - N o w J a v a . c o m 提供 **/4
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public class Main {7
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public static void main(String[] argv) {9
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Object[] entities = new String[] { "1", "abc", "level", null,11
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"nowjava.com", "asdf 123" };13
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System.out.println(getSizeFromArray(entities));15
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}17
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/** Get size from an array entities.20
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*22
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* @param entities to get its size.24
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* @return entities size.26
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*/28
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public static Integer getSizeFromArray(Object[] entities) {30
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return isNotEmpty(entities) ? entities.length : 0;32
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}34
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/** Test if entities array is not empty.37
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*39
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* @param entities to test if is not empty.41
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* @return true if entities is not null and its length is more than zero.43
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*/45
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public static boolean isNotEmpty(Object[] entities) {47
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return !isEmpty(entities);49
/**50
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* n o w j a v a . c o m - 时 代 Java 52
**/53
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}55
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/** Test if entities array is empty.58
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*60
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* @param entities to test if it is empty.62
/**代码未完, 请加载全部代码(NowJava.com).**/执行结果：
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