2 elements in 1 v.add vector java

For example, I am calling a scanner from the user.

double second = sc.nextDouble();
double multiplayer = sc.nextDouble();
v.add(second);
v.add(multiplayer);

And when I display the vector output these 2 inputs appear in 2 lines. Is there anyway to put these 2 elements in a single vector?

e.g. input second is 5.0
     input multiplayer is 1.4

display vector will be:

5.0
1.4开发者_Python百科

Is there anyway to make them in a single vector like

5.0 1.4?

Please help :(

First, do not use Vector use an ArrayList (see this question/answer why).

List<Double> v = new ArrayList<Double>();
v.add(5.0);
v.add(1.4);

• Using toString() of the list:

  The output from v.toString() is [5.0, 1.4]. As you can see there are some "extra characters" [, ], ,. To remove these you can call replaceAll with the regular expression [\\[\\],].

  System.out.println(v.toString().replaceAll("[\\[\\],]", ""));
  

• Using a for loop:

  for (Double e : v) System.out.print(e);
  System.out.println();
  

for ( Double d : v ) { System.out.print( d ); }

You may wish to put a System.out.println(); in front of that, so that the contents of the Vector are printed on a new line.