Java学习笔记20150907

有关Java中数组相关

两种定义方式

int []a = new int[5];int b[] = new int[5];

</pre><pre name="code" class="java">不创建新实例直接赋值

int []c = {0,1,2,3,4};

</pre><pre name="code" class="java">相当于C#中的foreach

<pre name="code" class="java">for(int a:array)

</pre><pre name="code" class="java">String类

三种定义方式

<pre name="code" class="java">String str1 ;stri = new String("HelloWorld");String str2 = "HelloWorld";char arr = {'a','b','c'};String str3 = new String(arr);

</pre><pre name="code" class="java"><pre name="code" class="java">.CharAt<==>.ToArray