我也是刚开始学的....你那个名字好有意思啊, 让我想起了我们一个tutor....他的口头语好象就是什么zik zak....;p 你在哪里上学啊,学info的吗,第几学期,真的好厉害啊.肯定以前c学的很好 呵呵, 你说的我脸都红了....也加上天热ing.... O-)
aachen , info第二学期
"肯定以前c学的很好"faint....倒ing....偶家只有java的书...都是到德国后听说这里是学java后现买的......
不好意思,我又回来了...
public class RectangleDemo{
public static void main(String args[])
{
Point p1;
Rectangle r1 = new Rectangle(p1,40,30);
r1.move(50,50);
System.out.println("Der Flaecheninhalt des Rechtecks ist " + r1.area());
}
}
class Rectangle
{
Point origin;
int width, height;
int area()
{
return(width*height);
}
}
class Point
{
int x,y;
Point(int xCoord,int yCoord)
{
x = xCoord;
y = yCoord;
}
}
RectangleDemo.java:6: cannot resolve symbol
symbol: constructor Rectangle(Point,int,int)
location: class Rectangle
Rectangle r1 = new Rectangle(p1,40,30);
^
RectangleDemo.java:7: cannot resolve symbol
symbol: method move(int,int)
location: class Rectangle
r1.move(50,50);
^
2 errors
Exit code: 1
There were errors RectangleDemo.java:6: cannot resolve symbol
symbol : constructor Rectangle (Point,int,int)//class Rectangle没有型如(Point, int, int ) 的konstruktor,
location: class Rectangle
Rectangle r1 = new Rectangle(p1,40,30);//而main里边却来了个对r1的initialisierung.
^
RectangleDemo.java:7: cannot resolve symbol
symbol : method move (int,int)
location: class Rectangle
r1.move(50,50);
^
同样, 里只有一个求面积的methode, 而没有这个move ( int , int) methode ...编译时找不找呀. 同事同事