Use the Container class that I showed in class and derive from it a new class called Barrel. A barrel is a container that has a volum by the radius r of the lid and height h of the barrel( V = r²h). The co parrel is the volume * 20. Your class must include: • a constructor that initializes the source and destination strings as radius and height. • • a Cost() function that overrides the cost function in Container. a getVolume() function that will return the volume of the barrel setter/getters for the radius and height.
Use the Container class that I showed in class and derive from it a new class called Barrel. A barrel is a container that has a volum by the radius r of the lid and height h of the barrel( V = r²h). The co parrel is the volume * 20. Your class must include: • a constructor that initializes the source and destination strings as radius and height. • • a Cost() function that overrides the cost function in Container. a getVolume() function that will return the volume of the barrel setter/getters for the radius and height.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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how would you do this in java the container class described in question is the other image file
Transcribed Image Text:Use the Container class that I showed in class and derive
from it a new class called Barrel. A barrel is a container that has a volume determined
by the radius r of the lid and height h of the barrel( V = är²h). The cost of shipping a
barrel is the volume * 20. Your class must include:
•
a constructor that initializes the source and destination strings as well as the
radius and height.
•
a Cost() function that overrides the cost function in Container.
•
a getVolume() function that will return the volume of the barrel
• setter/getters for the radius and height.
• a toString() function that returns a string that includes the src/dest as well as the
radius,height and volume
•
an equals() function that will test whether or not two barrels are equal (two
barrels are said to be equal if they have the same volume)
Use the following code in your main function to test your class.
System.out.println("*
Barrel bar = new Barrel ("GP", "FV", 3, 4);
Barrel bar2 = new Barrel ("FV", "GP", 2,9);
Container dc = new Container ("GP", "FV");
******begin BARREL TESTING
if (bar.equals (bar2))
else {
System.out.println("barrels bar and bar2 have the same volume - " + bar.getVolume ());
System.out.println("volume of barrel bar
System.out.println("volume of barrel bar2 = "+bar2.getVolume () );
System.out.println("not equal or you are comparing to incompatible types ");
"+bar.getVolume ());
}
if (bar.equals (dc))
System.out.println("barrels bar and bar2 have the same volume - "
else {
}
System.out.println (bar.getSrc());
********");
System.out.println("volume of barrel bar. "+bar.getVolume () );
System.out.println("not equal or you are comparing incompatible objects ");
bar.getVolume () );
System.out.println("----bar----\n" + bar.toString() + "\n----");
System.out.println("----bar2----\n" + bar2.toString() + "\n----");
System.out.println("Cost to ship barrel bar : " + bar. Cost ());
System.out.println("******** ********end BARREL TESTING ********
*********);
Transcribed Image Text:public class Container {
private String src;
private String dst;
//
//
//
}
}
public Container (String s, String d) {
src = new String (s);
dst = new String (d);
}
public double cost() {
return -1;
}
public Container() {
System.out.println("*
public String getSrc() {
return src;
}
public String getdst() {
return dst;
}
public void setSrc (String s) {
src = new String(s);
}
public void setDst(String d) {
dst = new String(d);
}
public String toString() {
}
return "src = " + src + "\ndst =
+ dst;
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the get source and getdestination dont seem to function correctly, is there any specific addon needed?
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