input = JOptionPane.showInputDialog(null, "Please enter your polynomial equation.");
                 input = input.replaceAll("\\s+", "").replaceAll("\\(", " ").replaceAll("\\)", " ");
                             
                 StringTokenizer tokenizer = new StringTokenizer(input);
                while(tokenizer.hasMoreTokens())
                {
                    first[count] = (tokenizer.nextToken());
                    count++;
                }
                 
                 first[0] = first[0].replaceAll("x", "").replaceAll("X","").replaceAll("\\^", " ").replaceAll("\\+", " ").replaceAll("\\-", " -");
                tokenizer = new StringTokenizer(first[0]);
                len = first[0].length() / 2;
                Double[][] in1 = new Double[len][2];
                while(tokenizer.hasMoreTokens())
                {
                    if(col == 1)
                    {
                        col = 0;
                    }
                    
                    else
                    {
                        in1[row][col] = Double.parseDouble(tokenizer.nextToken());
                    }
                    
                    row++;
                }
                                                                //heres where im trying to sort it.
                in1 = Arrays.selectionSort(in1);

--------------------Configuration: <Default>--------------------
G:\Java\token5.java:55: cannot find symbol
symbol  : method selectionSort(java.lang.Double[][])
location: class java.util.Arrays
                in1 = Arrays.selectionSort(in1);
                            ^
1 error