带有双输入的 JOptionpane 验证

Question

I am learning java. I try to declare a double array. For the input method, I would like to use JOptionPane. My question is how can I create the validation for this array.(For example: I want to valid that the salary input will be from 2000 to 10000). I'm sorry for my bad writing. Thank you guys!

Here is my code!

import javax.swing.JOptionPane;

public class Testing {

    /**
     * @param args
     */
    public static void main(String[] args) {

        double[] salary = new double[10];

        for(int i = 0; i < salary.length; i++)
        {
            salary[i] = Double.parseDouble(JOptionPane.showInputDialog(null," Enter Salary: "));
        }

    }

}

Answer 1

I think this will help you a bit to resolve your issue.

int i = 0;
double temp;
    while(i < salary.length) {
       // parseDouble throws NumberFormatException, handle it
      temp = Double.parseDouble(JOptionPane.showInputDialog(null," Enter Salary: "));
       if (temp >= 2000.0 && temp <= 10000.0){
           salary[i] = temp;
           i++;     // if in range change counter to next count
          // do something
       } else {
          // do something for out of range
       }
}

Answer 2

Read the section from the Swing tutorial on Stopping Automatic Dialog Closing . Customize the code to do you particular edit.