Converting elements under List<String[]> to upper case in one go

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I am using a List<String[]> with a few smaller case fields.

List<String[]> csvBody = reader.readAll(); 

My output should be of the same datatype List<String[]>.

Is there a possibility to convert every String in my Container to uppercase in a stretch?

Just iterate the strings:

List<String[]> csvBody = reader.readAll(); for (String[] strings : csvBody) {     for (int i = 0; i < strings.length; i++) {         strings[i] = strings[i].toUpperCase();     } } 


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