Question

Please help, Array does not print properly. I need to print out the 8 class numbers entered by the user !

Java only using J option pane, you cannot use ulti or anything else only J option pane

Program compiles but does not print the array correctly!

import javax.swing.JOptionPane;

public class programtrial {

   public static void main(String[] args) {
   int newclass = 0;
   int countclass = 0;
   final int class_Max = 8;
   int[] classarray = new int[class_Max];
  
  
   do {
  
for(int i = 0; i < classarray.length; i++){
   do {
   newclass = Integer.parseInt(JOptionPane.showInputDialog("Enter the class number "));
   try {
  
   }
   catch (NumberFormatException e) {
newclass =-1;
}

if( newclass <0) {
JOptionPane.showMessageDialog(null, "Invalid try again");
}

} while(newclass <0);

classarray[countclass] = newclass;
   ++countclass;
   }
  
}while(countclass != class_Max);


   JOptionPane.showMessageDialog(null, classarray);

}}

Answer 1

import javax.swing.JOptionPane;

public class programtrial {

    public static void main(String[] args) {
        int newclass = 0;
        int countclass = 0;
        final int class_Max = 8;
        int[] classarray = new int[class_Max];
        do {
            for (int i = 0; i < classarray.length; i++) {
                do {
                    try {
                        newclass = Integer.parseInt(JOptionPane.showInputDialog("Enter the class number "));
                    } catch (NumberFormatException e) {
                        newclass = -1;
                    }
                    if (newclass < 0) {
                        JOptionPane.showMessageDialog(null, "Invalid try again");
                    }
                } while (newclass < 0);
                classarray[countclass] = newclass;
                ++countclass;
            }
        } while (countclass != class_Max);
        String result = "";
        for (int i = 0; i < classarray.length; i++) {
            result += classarray[i] + " ";
        }
        JOptionPane.showMessageDialog(null, result);
    }
}