英文:
Related to int and double
问题
Scanner keyboard = new Scanner(System.in);
System.out.print("输入矩形的长度：");
double width = keyboard.nextDouble();
System.out.print("输入矩形的宽度：");
double length = keyboard.nextDouble();
double area = length * width;
System.out.print("面积 = " + area);
英文:
strong text
Scanner keyboard = new Scanner(System.in);
System.out.print("Enter rectangle length: ");
double width = keyboard.nextDouble();
System.out.print("Enter rectangle width: ");
double length = keyboard.nextDouble();
double area = length * width;
System.out.print("Area = " + area);
答案1
得分: 1
如果我移除在 Scanner keyboard = new Scanner(System.in); 之前的“strong text”，代码将正常工作。
package adi;
import java.util.Scanner;
public class Greeter {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.print("Enter rectangle length: ");
double width = keyboard.nextDouble();
System.out.print("Enter rectangle width: ");
double length = keyboard.nextDouble();
double area = length * width;
System.out.print("Area = " + area);
keyboard.close();
}
}
英文:
If I remove the "strong text" before Scanner keyboard = new Scanner(System.in); will work ok.
package adi;
import java.util.Scanner;
public class Greeter {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.print("Enter rectangle length: ");
double width = keyboard.nextDouble();
System.out.print("Enter rectangle width: ");
double length = keyboard.nextDouble();
double area = length * width;
System.out.print("Area = " + area);
keyboard.close();
}
}
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