import javax.swing.JOptionPane;
public class Prima {
       public static void main (String [] args) {
               String numString;
               int numInt;
               int jum = 0;
               int i;
               numString = JOptionPane.showInputDialog ("Masukkan angka : ");
               numInt = Integer.parseInt (numString);
               for (i=1; i<=numInt; i++) {
                     if (numInt % i ==0) {
                           jum = jum+1;
                     }
                }
                if (jum==2) {
                 JOptionPane.showMessageDialog (null, "Angka : " + numInt + "\nMerupakan bilangan prima");
                } else {
                      JOptionPane.showMessageDialog (null, "Angka : " + numInt + "\nBukan merupakan bilangan prima");
                }
        }
}
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