一,实例代码
public static void main(String[] args) {
IntBuffer buffer= IntBuffer.allocate(10);
for(int i=0;i<5;i++)
{
int randomNumber=new SecureRandom().nextInt(20);
buffer.put(randomNumber);
}
//读写切换
buffer.flip();
while(buffer.hasRemaining())
{
System.out.println(buffer.get());
}
}
}
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二,源代码
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在buffer的类文件中,翻到第39行及其附近(以下翻译不是源码的内容)
/**
* A container for data of a specific primitive type.
*一个存放特定原生数据的容器
* <p> A buffer is a linear, finite sequence of elements of a specific
* primitive type. Aside from its content, the essential properties of a
* buffer are its capacity, limit, and position: </p>
*最重要的除了内容,最基本的三个属性为capacity,limit,position
* <blockquote>
*
* <p> A buffer's <i>capacity</i> is the number of elements it contains. The
* capacity of a buffer is never negative and never changes. </p>
* capacity是元素的容量,不为负数且从不改变
* <p> A buffer's <i>limit</i> is the index of the first element that should
* not be read or written. A buffer's limit is never negative and is never
* greater than its capacity. </p>
* 第一个不能读的下标,不能为空,且不能大于容量(capacity)
* <p> A buffer's <i>position</i> is the index of the next element to be
* read or written. A buffer's position is never negative and is never
* greater than its limit. </p>
* position指向下一个读或者写的位置,不能大于limit
* </blockquote>
三,图解
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