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Commit 77c0a54

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优化"输出 Java 数组最简单的方式"
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‎README.md

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* [如何用一行代码初始化一个ArrayList](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/initialization-of-an-arraylist-in-one-line.md)
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* [初始化静态map](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/How-can-I-Initialize-a-static-Map.md)
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* [给3个布尔变量,当其中有2个或者2个以上为true才返回true](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/Check-if-at-least-two-out-of-three-booleans-are-true.md)
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* [Java中打印一个数组最简单的方法是什么](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/What's-the-simplest-way-to-print-a-Java-array.md)
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* [输出 Java 数组最简单的方式](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/What's-the-simplest-way-to-print-a-Java-array.md)
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* [为什么以下用随机生成的文字会得出 "hello world"?](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/why-does-this-code-using-random-strings-print-hello-world.md)
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* [什么在java中存放密码更倾向于char[]而不是String](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/why-is-cha[]-preferred-over-String-for-passwords-in-java.md)
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* [如何避免在JSP文件中使用Java代码](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/how-to-avoid-java-code-in-jsp-files.md)

‎contents/What's-the-simplest-way-to-print-a-Java-array.md

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Java中打印一个数组最简单的方法是什么
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输出 Java 数组最简单的方式
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===
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问题
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---
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在java中,数组没有重写toString()方法,所以我如果直接调用数组toStrign()方法的话,只会得到它的内存地址。像这样:
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因为 Java 数组中没有 toString() 方法,所以我如果直接调用数组toStrign()方法的话,只会得到它的内存地址。像这样,显得并不人性化:
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```java
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int[] intArray = new int[] {1, 2, 3, 4, 5};
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System.out.println(intArray); // 有时候会输出 '[I@3343c8b3'
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```
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但是实际上我想要的输出效果是
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```java
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[1, 2, 3, 4, 5]
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```
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所以打印一个数组最简单的方法是什么?我想要的效果是
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所以输出一个数组最简单的方法是什么?我想要的效果是
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```java
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// 数字数组:
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int[] intArray = new int[] {1, 2, 3, 4, 5};
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回答
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---
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在JAVA5中使用 Arrays.toString(arr) 或 Arrays.deepToString(arr)来打印数组。
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在 Java 5+ 以上中使用 Arrays.toString(arr) 或 Arrays.deepToString(arr)来打印(输出)数组。
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不要忘了引入import java.util.Arrays;
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```java

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