只是学习异常捕获。这会产生“高度无法解析为变量”。我想我错过了一些关键的东西。
import java.util.*;
public class Step4_lab01
{
public static void main(String[] args)
{
Scanner userIn = new Scanner(System.in);
System.out.print("Input height: ");
try {
int height = userIn.nextInt();
}
catch(InputMismatchException e)
{
System.out.println("ERORRORrr");
}
System.out.print("Input width: ");
int width = userIn.nextInt();
Rectangle rektangel1 = new Rectangle(height,width);
rektangel1.computeArea();
}
}