CODEWITHSUNDEEP
javastringinputuser-input
David Barnes
David Barnes

Reputation: 43

Take second word in input

I'm trying to make a calculator to help me with physics homework. For this, I'm trying to make it separate input into two parts, so typing "wavelength 18" would split it into "wavelength" and "18" as a numeric value.

I understand to get the first word that I can use 

   String variable = input.next();

But is there a way to read what comes after the space?

Thanks.

Upvotes: 1

Views: 597

Answers (3)

dmitryvinn
dmitryvinn

Reputation: 412

Assuming that you also might have three words or just one, it is better not to rely on arrays. So, I suggest to use List here:

final String inputData = input.next();
//Allows to split input by white space regardless whether you have
//"first   second" or "first second"
final Pattern whiteSpacePattern = Pattern.compile("\\s+");
final List<String> currentLine = whiteSpacePattern.splitAsStream(inputData)
.collect(Collectors.toList());

Then you can do a variety of checks to ensure you have correct number of values in the list and get your data:

//for example, only two args
if(currentLine.size() > 1){
   //do get(index) on your currentLine list
 }

Upvotes: 0

tmutton
tmutton

Reputation: 1101

String[] parts = variable.split(" ");
string first = parts[0];
string second = parts[1];

Upvotes: 1

Nikitha
Nikitha

Reputation: 373

String entireLine = input.nextLine();
String [] splitEntireLine = entireLine.split(" ");
String secondString = splitEntireLine[1];

Upvotes: 0

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