java - 线程中出现异常，java代码将无法正常执行。 if/else 语句

Question

// Alex Deines
import javax.swing.*;  


public class DeinesAdmissions
{
    public static void main(String[] args)
    {
        String anwserString;
        double anwser;
        double y;

        anwserString= JOptionPane.showInputDialog(null,"Enter your GPA", "GPA", JOptionPane.QUESTION_MESSAGE);
        anwser = Double.parseDouble(anwserString);
            JOptionPane.showInputDialog(null,"Enter your Admission Test Score", "Test Score", JOptionPane.QUESTION_MESSAGE);
            y = Integer.parseInt(anwserString);

        if(anwser>=3 && y>=60 || anwser>=0 && y>=85 )
            JOptionPane.showMessageDialog(null, "You have been accepted");
        else 
            JOptionPane.showMessageDialog(null, "Sorry we must reject your application");


}

}

异常(exception):

 Exception in thread "main" java.lang.NumberFormatException: For input string: "3.2"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.lang.Integer.parseInt(Integer.java:615)
at DeinesAdmissions.main(DeinesAdmissions.java:16)

插入变量后，我收到此错误代码。有人能引导我走向正确的方向吗？

Answer 1

y 是 double 所以使用 Double.parseDouble :(与anwser相同)

y = Double.parseDouble(anwserString);

您可以使用 Double.compare 比较 double

Compares the two specified double values. The sign of the integer value returned is the same as that of the integer that would be returned by the call:

new Double(d1).compareTo(new Double(d2))

注意拼写错误 anwser 应拼写为 answer，作者:@Katamari

您忘记在 @JohnnyMopp 的第二次调用中更新 anwserString

 anwserString = JOptionPane.showInputDialog(null,"Enter your Admission Test Score", "Test Score", JOptionPane.QUESTION_MESSAGE);