我是java的初学者。我目前的任务是将以前的代码转换为使用GUI的代码。这是以前的代码。如何让java用GUI保存用户输入?
public class Tax {
public static void main(String[] args) {
//Variables
double RealHouseValue;
double AssessedValueRate;
int TaxDistrict;
double AssessedValue;
double PropertyTaxRate;
//Insert applicable numbers
RealHouseValue = 300000;
AssessedValueRate = .35;
TaxDistrict = 200;
AssessedValue = RealHouseValue*AssessedValueRate;
PropertyTaxRate = .03;
System.out.println("Actual House Value: $" + RealHouseValue); //Displays current house value
System.out.println();
System.out.println("Assessed Value Rate is: " + AssessedValueRate + " for tax district: " + TaxDistrict);
System.out.println();
System.out.println("Assesed Value: $" + AssessedValue);
System.out.println();
System.out.println("Local Property Tax Rate: " + PropertyTaxRate);
System.out.println();
System.out.println("Property Tax Due This Year: $" + AssessedValue*PropertyTaxRate);
我想要做的是有一个框询问用户的实际房屋价值,或“E”退出。当用户输入他们的房屋价值时,我希望它做上面的计算并输出他们年度到期的财产税。如果他们按“E”,我想打印出“Good Bye”,然后停止运行。这是我到目前为止:
import javax.swing.JOptionPane; // Needed for the Scanner class
public class taxGui {
public static void main(String[] args) {
String custInput;
double realHouseValue;
double AssessedValueRate;
double AssessedValue;
double PropertyTaxRate;
//Insert applicable numbers
realHouseValue = 0.0;
AssessedValueRate = .35;
AssessedValue = realHouseValue*AssessedValueRate;
PropertyTaxRate = .03;
custInput = JOptionPane.showInputDialog("Enter your house value, or press 'E' to exit.");
realHouseValue = custInput.charAt(0);
if (realHouseValue > 0)
{
JOptionPane.showMessageDialog(null, "Your property tax due this year is: " + AssessedValue*PropertyTaxRate);
realHouseValue= custInput.charAt(0);
}
}
}
我想获得realHouseValue等于用户输入,而不是0.0声明。我有这样一堂课,面向中级对象编程。我试着问我的教授提出的问题,但他的回答正好在我头上。任何帮助,将不胜感激。对不起,如果格式或任何关闭,这是我的第一篇文章。感谢您的期待!
- 查尔斯
看看发布的答案[这里](https://stackoverflow.com/questions/11871520/how-can-i-read-input-from-the-console-using-the-scanner-class- in-java) – d33j
所以你想构建一个像Swing一样的真正的GUI?或者你在寻找一种基于控制台的解决方案? –
只是弹出窗口,这是与此导入: import javax.swing.JOptionPane; – Charles