Next and Previous Buttons

[kbgriggs]

Help.....I am new to java and trying to add first, next, previous and last buttons to my gui. I have all my code working but whenever I try and I have tried a lot of things, everything gets screwed up. Here is a section of my code:

            public void actionPerformed(ActionEvent e)
            {

                  //add button functions

                  if (e.getActionCommand() == "First") // First is the caption (label) on my button. If the button I click is First, the following statements will execute.
                  {

                        prodnameField.setText(software[0].getprodname()); // get the name of the first person in my array and display it in the name text box.

                        itemnumField.setText(String.valueOf(software[0].getitemnum())); // get the age of the first person in my array and display it in the age text box.

                        prodpriceField.setText(String.valueOf(software[0].getprodprice())); // get the weight of the first person in my array and display it in the weight text box.



                  } // end if

                       if (e.getActionCommand() == "Next") // First is the caption (label) on my button. If the button I click is First, the following statements will execute.
                  {

                        prodnameField.setText(software[1].getprodname()); // get the name of the first person in my array and display it in the name text box.

                        itemnumField.setText(String.valueOf(software[2].getitemnum())); // get the age of the first person in my array and display it in the age text box.

                        prodpriceField.setText(String.valueOf(software[2].getprodprice())); // get the weight of the first person in my array and display it in the weight text box.



                  } // end if





                  if (e.getActionCommand() == "Last") // Last is the caption (label) on my button. If the button I click is labeled Last, the following statements will execute.

                        prodnameField.setText(software[4].getprodname()); // get the name of the last person in my array and display it in the name text box.

                  itemnumField.setText(String.valueOf(software[4].getitemnum())); // get the age of the last person in my array and display it in the age text box.

                  prodpriceField.setText(String.valueOf(software[4].getprodprice())); // get the weight of the last person in my array and display it in the weight text box.

            } // end if

[mtyoung]

i think you missing {} for "Last" button

and you just hard code "Next" to get xxx[2], not really do "Next"

[RamyaSivakanth]

Added to mtyoungs suggestion

one more thing I want to tell here.


always use equals() method instead of "==" and always trim the string before comparing.