Need help with basic java code Hi guys. I need some help on this code. It compiles and I can get results when I run it on Netbeans but I always get RuntimeException. I found out on Javadocs this is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine. How can I get rid of it? Any thoughts? Thanks! Code: // i++ float Etplus, TrueEplus, TrueVplus, fplus1=0; // Summation from i=1 to 10000 for (int i=1;i<=10000;i++){ fplus1 +=(float) 1/(Math.pow(i,4)); } TrueVplus = (float) ((Math.pow(Math.PI, 4)) / 90); TrueEplus = (float) TrueVplus - fplus1; Etplus = (float)(TrueEplus/TrueVplus)*100; JOptionPane.showMessageDialog (null,"Ft(i++) = "+TrueVplus + "\n\nFa(i++) = " +fplus1 + "\n\nEt(i++) = ("+Etplus+ ")%","Results for i++ (Float)", JOptionPane.INFORMATION_MESSAGE); // i-- float Etminus, TrueEminus, TrueVminus, fminus1=0; // Summation from i=10000 to 1 for (int j=10000;j>=1;j--){ fminus1 += (double) 1/(Math.pow(j, 4)); } TrueVminus = (double) (Math.pow((Math.PI), 4))/90; TrueEminus = (double) TrueVminus - fminus1; Etminus = (double) (TrueEminus/TrueVminus)*100; JOptionPane.showMessageDialog (null, "Ft(i--) = " +TrueVminus + "\n\nFa(i--) = " +fminus1 + "\n\nEt(i--) = (" +Etminus+")%","Results for i--(Float)", JOptionPane.INFORMATION_MESSAGE); } }