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Thread: If statement not working

  1. #1
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    Default If statement not working

    I have an If statement and it seems that it is not functioning properly. The first part of the if statement is getting skipped over. I am checking to see if a ".lic" file exists and if it does then execute the command, otherwise give message that the file does not exist.



    try{
     
            String License = System.getProperty("user.dir") + ("*.lic");
            File license = new File(License);
              if (license.exists()){
            try{
            Runtime.getRuntime().exec(cmd);
     
            } catch (IOException ex) {
          }
              } else {
                  JOptionPane.showMessageDialog(null, "Need to activate license, please see README file");
              }
          }catch(HeadlessException e){
              // if any error occurs
     
          }

  2. #2
    Super Moderator Norm's Avatar
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    Default Re: If statement not working

    first part of the if statement is getting skipped over.
    Do you mean the else part is being executed?
    Or do you mean that the exec method is not doing what you want?

    Note: I see an empty catch block. Add a call to the printStackTrace method inside the catch block to show if there are any execution errors/
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: If statement not working

    Still, need help on this.

  4. #4
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    Default Re: If statement not working

    You need to see what the problem is. Is the if statement executing the true part? It must be if the else part is not showing JOptionPane message.
    To see: add a print statement inside the if statement to show that it is executing.
    Also Add a call to the printStackTrace method inside the catch block to show if there are any execution errors.
    If you don't understand my answer, don't ignore it, ask a question.

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