Convert for loop to streams using java 8

Question

Need ideas for converting below loop into streams. I am new to java 8 streams and learning practically how it will implemented.

for (int i=0; i < headerNames.size(); i++){
    XSSFCell cell = headerRow.createCell(i);
    cell.setCellValue(headerNames.get(i));
}

you create a cell, set its value, and lose it, that's it with the code? — Naman, Dec 09 '20 at 08:14
@Naman I *assume* ... the newly created cell belongs to the headerRow. So it is *not* lost. — GhostCat, Dec 09 '20 at 08:17
Why do you want to convert this to a stream? Not everything should be a stream. Just because streams are a new tool in your toolbox, doesn't mean you should use it for everything. — Mark Rotteveel, Dec 09 '20 at 08:47

score 0 · Accepted Answer · answered Dec 09 '20 at 07:38

0

You can try the below snippet,

IntStream.range(0, headerNames.size())
         .forEach(i -> headerRow.createCell(i)
                                .setCellValue(headerNames.get(i)));

Stream indices in headerNames and for each index create a cell and set its value.

answered Dec 09 '20 at 07:38

Prasanna

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Thanks as this has worked after the implementation. – SUNIL CHITYALA Dec 09 '20 at 12:14

Convert for loop to streams using java 8

1 Answers1