Hi guys,
i am new to java so i started of with basics, but now im stuck at a little problem. I will paste the code and error's below, hoping that some1 could sort em out
import java.lang.*;
import java.io.*;
class Sphere{
float radius;
int cXcord;
int cYcord;
int cZcord;
Sphere()
{
radius=5;
cXcord=0;
cYcord=0;
cZcord=0;
}
Sphere(float r,int cX,int cY,int cZ)
{
radius = r;
cXcord = cX;
cYcord = cY;
cZcord = cZ;
}
double SurfaceArea()
{
return ( 4*3.14*radius*radius);
}
double Volume()
{
return ((4*3.14*radius*radius*radius)/3);
}
}
class ColorBall extends Sphere
{
String color = new String();
ColorBall()
{
super();
color = "White";
}
ColorBall(String col)
{
super();
color = col;
}
ColorBall(float r,int cX,int cY,int cZ,String col)
{
super(r,cX,cY,cZ);
color = col;
}
String getColor()
{
return color;
}
}
class HeavyBall extends ColorBall
{
int weight;
HeavyBall()
{
super();
weight=1;
}
HeavyBall (int w)
{
super();
weight = w;
}
HeavyBall(float r,int cX,int cY,int cZ,String col,int w)
{
super(r,cX,cY,cZ,col);
weight=w;
}
int getWeight()
{
return weight;
}
}
public class Main{
public static void main(String args[])
{
int eValue,cX,cY,cZ,weight,w1,w2;
float radius;
String color,c1,c2;
//HeavyBall obj1 = new HeavyBall(radius,cX,cY,cZ,color,weight);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Press 1 to enter sphere details , 0 to go on with default values for Sphere 1");
try {
eValue=br.read();
System.out.println();
if (eValue==1)
{
System.out.print("Enter Radius : ");
radius = Integer.parseInt(br.readLine());
System.out.println();
System.out.print("Enter X Co-ordinate for center : ");
cX = br.read();
System.out.println();
System.out.print("Enter Y Co-ordinate for center");
cY = br.read();
System.out.println();
System.out.print("Enter Z Co-ordinate for center");
cZ = br.read();
System.out.println();
System.out.print("Enter Color of the Sphere");
color = br.readLine();
System.out.println();
System.out.print("Enter Weight of the Sphere");
weight = Integer.parseInt(br.readLine());
System.out.println();
HeavyBall obj1 = new HeavyBall(radius,cX,cY,cZ,color,weight);
}
else if (eValue==0)
{
HeavyBall obj1 = new HeavyBall();
}
else
{
System.out.println("Wrong choice!!!");
}
System.out.print("Press 1 to enter sphere details , 0 to go on with default values for Sphere 2");
eValue=br.read();
System.out.println();
if (eValue==1)
{
System.out.print("Enter Radius : ");
radius = Integer.parseInt(br.readLine());
System.out.println();
System.out.print("Enter X Co-ordinate for center : ");
cX = br.read();
System.out.println();
System.out.print("Enter Y Co-ordinate for center");
cY = br.read();
System.out.println();
System.out.print("Enter Z Co-ordinate for center");
cZ = br.read();
System.out.println();
System.out.print("Enter Color of the Sphere");
color = br.readLine();
System.out.println();
System.out.print("Enter Weight of the Sphere");
weight = Integer.parseInt(br.readLine());
System.out.println();
HeavyBall obj2 = new HeavyBall(radius,cX,cY,cZ,color,weight);
}
else if (eValue==0)
{
HeavyBall obj2 = new HeavyBall();
}
else
{
System.out.println("Wrong choice!!!");
}
}
catch(IOException e)
{
System.out.println("Stream cannot be read :( exception caught");
}
System.out.println("Comparing Weights of the 2 sphere");
w1=obj1.getWeight();
w2=obj2.getWeight();
if(w1>w2)
{
System.out.println("Sphere 1 is heavier than Sphere 2");
}
if(w2>w1)
{
System.out.println("Sphere 2 is heavier than Sphere 1");
}
if(w1==w2)
{
System.out.println("Sphere 1 weighs same as Sphere 2");
}
c1=obj1.getColor();
c2=obj2.getColor();
System.out.println("Color of sphere 1 is "+c1);
System.out.println("Color of sphere 2 is "+c2);
}
}errors that i get :
symbol : variable obj1
location: class Main
w1=obj1.getWeight();
same errors i get for object w2 , c1 and c2
Thnx in advance :)
