public class Task4 { public static void main(String[] args) { int number1; int number2; ? ?double sum; String ?firstNumber; String ?secondNumber; firstNumber=JOptionPane.showInputDialog("Enter first number"); secondNumber=JOptionPane.showInputDialog("Enter second number"); number1=Integer.parseInt(firstNumber); number2=Integer.parseInt(secondNumber); if(number1==1){ sum=233.99*number2*0.09+200; } if(number1==2){ sum=129.75*number2*0.09+200; }if(number1==3){ sum=99.95*number2*0.09+200; ? ?}else{ sum=350.89*number2*0.09+200; ? ?} JOptionPane.showMessageDialog(null, sum,"Results",JOptionPane.INFORMATION_MESSAGE); System.exit(0);}}
輸入商品類型number1，數量number2求總收入，哪錯了？求解！
慕粉02102016
2016-10-22 23:04:27
