public class Test {
class Rectangle
{
private double width,height;
public Rectangle(double a,double b)
{
width=a;
height=b;
}
public double cess()
{
return 2*(width+height);
}
public double area() {
return 2*width*height;
}
}
public static void main(String[] args)
{
Rectangle kiss=new Rectangle(2.0,4.0);
System.out.println(kiss.cess()+kiss.area());
}
}
class Rectangle
{
private double width,height;
public Rectangle(double a,double b)
{
width=a;
height=b;
}
public double cess()
{
return 2*(width+height);
}
public double area() {
return 2*width*height;
}
}
public static void main(String[] args)
{
Rectangle kiss=new Rectangle(2.0,4.0);
System.out.println(kiss.cess()+kiss.area());
}
}
{
Rectangle kiss=new Rectangle(2.0,4.0);
System.out.println(kiss.cess()+kiss.area());
}
}
class Rectangle
{
private double width,height;
public Rectangle(double a,double b)
{
width=a;
height=b;
}
public double cess()
{
return 2*(width+height);
}
public double area() {
return 2*width*height;
}
}
---------------------不一样。你原来的Rectangle是嵌套的类。
System.out.println(kiss.cess() + " " + kiss.area());
{
Rectangle kiss=new Rectangle(2.0,4.0);
System.out.println(kiss.cess()+kiss.area());
}
}
class Rectangle
{
private double width,height;
public Rectangle(double a,double b)
{
width=a;
height=b;
}
public double cess()
{
return 2*(width+height);
}
public double area() {
return 2*width*height;
}
}