how to read float array from command line in java?

Question

How can I store float value in an array from command line and when user input character "q" then system stop inputting values from command line.

You need to write a little program using `Scanner.java`. Read one token at a time, exit when it's q otherwise parse into float and store in a float array. — Yogendra Singh, May 14 '13 at 17:11
In addition to @YogendraSingh, I would paste those values into List, which you will then can [convert to array](http://stackoverflow.com/questions/9572795/convert-list-to-array-in-java) — om-nom-nom, May 14 '13 at 17:13
In order to answer this question, we'll need more specific information. How should the array be entered, and what is the dimension of the array (i. e., is it a 2-dimensional array or a 1-dimensional array)? — Anderson Green, May 14 '13 at 17:31
Dear Green! its only 1-dimensional float array but size of the array is not know in advance — user1703737, May 14 '13 at 17:43

score 0 · Accepted Answer · answered May 14 '13 at 17:20

0

I haven't tested it, but wrote using Scanner docs

Scanner sc = new Scanner(System.in);
while(sc.hasNext()) {
  String next = sc.next();
  if("q".equals(next)) break;

  float value = new Float(next);
  System.out.println("Float: "+value);
}

answered May 14 '13 at 17:20

mprivat

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Your comment prompted me to test it. It seems to work ok. – mprivat May 14 '13 at 17:42
Dear! I need an float array and its size is not known in advance – user1703737 May 14 '13 at 17:46

how to read float array from command line in java?

1 Answers1