jlab0401.java

华中科技大学JAVA课程所有实验源码及截图 本校的同学可以不用辛苦地敲键盘了 外校同学可以看看

class JLab0401{
	public static void main(String args[]){
		Rectangle myRect=new Rectangle(2.5,8.7);
		double theArea;
	
		
		theArea=myRect.area();
		;
		System.out.println("My rectangle has area"+theArea);
		}
	}//end of class JLab0401
	
	class Rectangle{
		double width,length;
		public Rectangle(double x,double y){
			width=x;
			length=y;
			System.out.println("my rectangle has width"+width+"and length"+length);
			
		}
		public void setWidth(double x){
			this.width=x;
			
		}
		public void setLength(double x){
			this.length=x;
			
		}
		public double area(){
		double a;
		a=length*width;
		return a;
		}
		
		}