Question

有关java 请高手指教为什么无法运行

import javax.swing.JOptionPane;
public class yunsuan{
public static void main(String args[])
{
String firstNumber;
String secondNumber;

int number1;
int number2;
int sum;
int difference;
int product;
int quotient;

firstNumber=JOptionPane.showInputDialog("Enter first integer");
secondNumber=JOptionPane.showInputDialog("Enter second integer");

number1=Integer.parseInt(firstNumber);
number2=Integer.parseInt(secondNumber);
sum=number1+number2;
difference=number1-number2;
product=number1*number2;
quotient=number1/number2;

JOptionPane.showMessageDialog(null, "The sum is "+ sum ,"The difference is "+difference, "The

product is "+product,"The quotient is "+quotient,"Results",JOptionPane.PLAIN_MESSAGE);

System.exit(0);
}
}

Answer 1

楼主，JOptionPane.showMessageDialog()有两种重载方法：1.showMessageDialog(Component) 2.showMessageDialog(Component,String,int)
你可以考虑把输出内容合并一下，比如 "The sum is "+ sum + ","+"The difference is "+difference
这样就可以了