将循环转换为Java 8流 [英] Converting loop to Java 8 streams

问题描述

如何将以下循环代码转换为简单的Java 8流?

How can I convert the following looping code to simple Java 8 streams?

List<String> headers = new ArrayList<>(); 
...   
int column = 0;

for(String text:headers){
    Cell cell = header.createCell(column++);
    cell.setCellValue(text);
}

推荐答案

不需要流.使用 AtomicInteger 和 Iterable#forEach :

Streams won't be needed. Use an AtomicInteger and Iterable#forEach:

AtomicInteger column = new AtomicInteger(0);
headers.forEach(text -> header.createCell(column.getAndIncrement()).setCellValue(text));

是否更具可读性取决于您.

Whether that's more readable is up to you.

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