public static void printTable() {
        List<UAccounts> alldata = dataviewing();
        for (int i = 0; i < alldata.size(); i  ) {
            System.out.println( alldata.get(i).getUserID() "\t" 
                      alldata.get(i).getUsername()   "\t"   alldata.get(i).getForename()   "\t")
                      alldata.get(i).getSurname()   "\t"   alldata.get(i).getPassword()   "\t"
                      alldata.get(i).getIsadmin();
        };
    }

Sorry I'm guessing this is probably an obvious fix but I'm very new to java and cant seem to figure it out. On the line that reads System.out.println( alldata.get(i).getUserID() "\t" I am receiving a not a statement error as well as void type not allowed here. If anyone could tell me where I'm going wrong and what i would need to change it to to make it work it would be much appreciated.

CodePudding user response：

In your print statement you have the closing parentheses wrong:

System.out.println( alldata.get(i).getUserID() "\t" 
      alldata.get(i).getUsername()   "\t"   alldata.get(i).getForename()   "\t") // it is here
      alldata.get(i).getSurname()   "\t"   alldata.get(i).getPassword()   "\t"
      alldata.get(i).getIsadmin(); // but should be here

You need to fix it like this

System.out.println( alldata.get(i).getUserID() "\t" 
      alldata.get(i).getUsername()   "\t"   alldata.get(i).getForename()   "\t"
      alldata.get(i).getSurname()   "\t"   alldata.get(i).getPassword()   "\t"
      alldata.get(i).getIsadmin());

Basically what you currently have is

System.out.println("some string")   "some other string";

System.out.println("some string") returns void (nothing) and you cannot append a string to nothing.

CodePudding user response：

Changed to:

    public static void printTable() {
        List<UAccounts> alldata = dataviewing();
        for (int i = 0; i < alldata.size(); i  ) {
            System.out.println( alldata.get(i).getUserID() "\t" 
                      alldata.get(i).getUsername()   "\t"   alldata.get(i).getForename()   "\t"
                      alldata.get(i).getSurname()   "\t"   alldata.get(i).getPassword()   "\t"
                      alldata.get(i).getIsadmin());
        };
    }

Make sure paired chars match each other. You can use a plugin such as Bracket pair colorization to make it easy.