提示公用类型
我定义了一个public类,提示公用类型必须在自己的文件中定义,请问是什么意思?
我用eclipse新建一个类,名为OblongTester,下面是代码,我是自学菜鸟,大家帮看一下,谢谢
public class Oblong{
private double length;
private double height;
public Oblong(double lengthIn, double heightIn)
{
length = lengthIn;
height = heightIn;
}
public double getLength()
{
return length;
}
public double getHeight()
{
return height;
}
public void setLength(double lengthIn)
{
length = lengthIn;
}
public void setHeight(double heightIn)
{
height = heightIn;
}
public double calculateArea()
{
return length * height;
}
public double calculatePerimeter()
{
return 2 * (length + height);
}
}
import java.util.*;
public class OblongTester{
public static void main(String[] args)
{
Scanner sc = new Scanner (System.in);
double oblongLength, oblongHeight;
Oblong myOblong;
System.out.print("Please enter the length of your oblong:");
oblongLength = sc.nextDouble();
System.out.print("Please enter the height of your oblong:");
oblongHeight = sc.nextDouble();
myOblong = new Oblong(oblongLength, oblongHeight);
System.out.println("Oblong length is " + myOblong.getLength());
System.out.println("Oblong height is " + myOblong.getHeight());
System.out.println("Oblong area is " + myOblong.calculateArea());
System.out.println("Oblong perimeter is " + myOblong.calculatePerimeter());
}
}
