Eighth job - inherited

topic

 

JuXing.java (rectangle class)

/ * Rectangle class defines three member variables length, width, zc, representing the length and width and girth, there is another method of seeking to hold the perimeter. * / 
Package COM;
 public  class Juxing {
     public  int length;
     public  int width;
     public  int ZC;
     int getZc () { 
        ZC = (length + width) * 2 ;
         return ZC;} 

 }
   

Zfx.java (square type)

/ * Subclasses inherit parent square rectangle class, two methods (perimeter squares method is a method wherein the rewritable) area and perimeter of the square find * / 
Package COM; 

public  class ZFX the extends Juxing {
     int Area;
     int the getArea () {
         return Area * length = length; 
    } 
    int getZc () { 
        ZC = (length) *. 4 ;
         return ZC;} 
}

 

App.java (test class)

/ * Create a square object, call seeking area perimeter method, the output return value. * / 
Package COM;
 Import java.util.Scanner;
 public  class the App {
     public  static  void main (String [] args) { 
　　　　　System.out.println ( "Please enter the side length"); 
        Scanner Reader = new new Scanner (the System.in ); 
        ZFX ZFX = new new ZFX (); 
        zfx.length = reader.nextInt (); 
        System.out.println ( "area" + zfx.getArea ()); 
        System.out.println ( "circumference" + ZFX .getZc ()); 
    } 

}

Test run results