How to concatenate strings using Guava?
11,260
Solution 1
You don't need the loop, you can do the following with Guava:
// trim the elements:
List<String> trimmed = Lists.transform(list, new Function<String, String>() {
@Override
public String apply(String in) {
return in.trim();
}
});
// join them:
String joined = Joiner.on("").join(trimmed);
Solution 2
"+" should work. Don't use libraries when you're having problems. Try to understand the nature. Otherrwise you'll have a very complicated code with hundreds of libraries :))
This should work instead.
for (String inputLine : list) {
inputFile += inputLine.trim();
}
And you might also want to use Stringbuilder
StringBuilder sb = new StringBuilder("Your string");
for (String inputLine : list) {
sb.append(inputLine.trim());
}
String inputFile = sb.toString();
Solution 3
Try
String inputFile = Joiner.on(",").join(list);
Author by
stacktome
Updated on June 09, 2022Comments
-
stacktome almost 2 years
I wrote some code to concatenate Strings:
String inputFile = ""; for (String inputLine : list) { inputFile +=inputLine.trim()); }
But I can't use
+
to concatenate, so I decide to go with Guava. So I need to use Joiner.inputFile =joiner.join(inputLine.trim());
But it's giving me an error. I need help to fix this. Many Thanks.