使FileReader循环读取第四行 [英] Make FileReader read every fourth line with a loop

问题描述

我的问题是，我在寻找客户时必须安排while循环以仅检查每四行读取的内容.

My problems is that I have to arrange, when searching for a customer, arrange the while loop to only examine every fourth line read.

这是我已经解决此问题的代码:

This is the code I already have on this problem:

BufferedReader br = new BufferedReader(new FileReader("Customers.txt"));
String line;

while ((line = br.readLine()) != null)
{
    ...
}

br.close();

有人知道在"..."处需要什么吗?

Does anybody know what needs to be at the place of "..."?

谢谢！

推荐答案

只需在循环结束时调用br.readLine()3次，并丢弃输出:

Just call br.readLine() 3 times at the end of the loop, discarding the output:

BufferedReader br = new BufferedReader(new FileReader("Customers.txt"));
String line;

while ((line = br.readLine()) != null)
{
    ...
    for(int i=0;i<3;i++){ br.readLine(); }
}

br.close();

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