The program compiles correctly however, it does not give the total cost. import

Question

The program compiles correctly however, it does not give the total cost. import java.util.*; import javax.swing.JOptionPane; import java.lang.*; public class conferenceRegistrationSystem { public static void main(String [] args) { double cost; double totalcost; int choose; String strInput; String strInput1; choose=0; while(choose<1||choose>4) { strInput = JOptionPane.showInputDialog(null,"Select registration type: 1. General registration 2.Student registration 3.General registration with night dinner and keynote speech 4. Student registration with night dinner and keynote speech "); choose=Integer.parseInt(strInput); } if(choose == 1) { cost=895; } else if(choose == 2) { cost=495; } else if (choose == 3) { cost=925; } else cost = 525; JOptionPane.showMessageDialog(null,"Your registation type is:$"+cost); choose=0; while(choose<1||choose>3 ) { strInput1=JOptionPane.showInputDialog(null,"Select Optional preconference workshop 1. Introduction to E-Commerce 2.The Future of the Web 3. Advanced Java Programming 4.Network Security "); choose=Integer.parseInt(strInput1); } if(choose == 1) { totalcost=(295+cost); } else if(choose == 2) { totalcost=(295+ cost); } else if (choose == 3) { totalcost=(395+ cost); } JOptionPane.showMessageDialog(null,"Your total registration type is:$"+ "totalcost"); } }

Explanation / Answer

this seems to be working..

import java.util.*;
import javax.swing.JOptionPane;
import java.lang.*;
public class conferenceRegistrationSystem {
        public static void main(String [] args) {
                double cost; double totalcost; int choose; String strInput; String strInput1; choose=0;
                while(choose<1||choose>4) {
                        strInput = JOptionPane.showInputDialog(null,"Select registration type: 1. General registration 2.Student registration 3.General registration with night dinner and keynote speech 4. Student registration with night dinner and keynote speech ");
                        choose=Integer.parseInt(strInput);
                }
                if(choose == 1) { cost=895; }
                else if(choose == 2) { cost=495; }
                else if (choose == 3) { cost=925; }
                else cost = 525;
                JOptionPane.showMessageDialog(null,"Your registation type is:$"+cost);
                choose=0;
                totalcost= 0;
                while(choose<1||choose>3 ) {
                        strInput1=JOptionPane.showInputDialog(null,"Select Optional preconference workshop 1. Introduction to E-Commerce 2.The Future of the Web 3. Advanced Java Programming 4.Network Security ");
                        choose=Integer.parseInt(strInput1);
                }
                if(choose == 1) { totalcost=(295+cost); }
                else if(choose == 2) { totalcost=(295+ cost); }
                else if (choose == 3) { totalcost=(395+ cost); }
                JOptionPane.showMessageDialog(null,"Your total registration type is:$"+ totalcost);
        }
}

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