java calling methods and objects
<p>my dear Friends I am new to this java ..so plz help me thank u in advance.. Now i am workin on an examples to understand the concepts of java's objects, classes method in detail.
With all the knowledge i have i tried this example. . but i am unable to accomplish the task.. . Can any one plz give me suggestions of corrected coding..</p>

<p>I also wanted to know Which s the best site for learning JAVA (like MSDN for .NET )
Thank u in advance</p>

<p>Question:To Create Vehicle having following attributes: Vehicle No., Model, Manufacturer and Color. Create truck which has the following additional attributes: loading capacity( 100 tons…).Add a behavior to change the color and loading capacity. Display the updated truck details.</p>

<p>Codings:</p>

<pre><code>import java.io.*;

class Vehicle
{
    String VehicleNo;
    String Model;
    String Manufacturer;
    String Color;


    public void setNo(String VehicleNo)
    {
    this.VehicleNo=VehicleNo;
    }

    public String getNo()
    {
    return VehicleNo;
    }


    public void setModel(String Model)
    {
    this.Model=Model;
    }

    public String getModel()
    {
    return Model;
    }

    public void setManufacturer(String Manufacturer)
    {
    this.Manufacturer=Manufacturer;
    }

    public String getManufacturer()
    {
    return Manufacturer;
    }



    public void setColor(String Color)

    {
    this.Color=Color;
    }

    public String getColor(String s)
    {
    return s;
    }

}


class Truck extends Vehicle

{

    double LoadingCapacity;

    public void setLoad(double LoadingCapacity)
    {
    this.LoadingCapacity=LoadingCapacity;
    }


    public double getLoad(double ld)
    {
    return ld;
    }
}

public class VehicleInfo {

    /**
     * @param args
     * @throws IOException 
     */
    public static void mainEntry2() throws IOException
    {   
        //Truck D=new Truck();
        //BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Color: ");
        String col=br.readLine();
        D.setColor(col);

        System.out.print("Enter Loading Capacity: Maximum 100tons");
        int load=Integer.parseInt(br.readLine());
        D.setLoad(load);
    }
    public static void main(String[] args) throws IOException 
        {
            int loop_option=0;
            public Truck D=new Truck();
            public BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
            System.out.print("Vehicle No: ");
            String no=br.readLine();
            D.setNo(no);

            System.out.print("Model: ");
            String model=br.readLine();
            D.setModel(model);

            System.out.print("Manufacturer: ");
            String man=br.readLine();
            D.setManufacturer(man);

mainEntry2();
            do
            {
                System.out.println("");

                System.out.println("----Vehicle Information----");
                System.out.println();
                System.out.println("Vehicle No: "+D.getNo());
                System.out.println("Model: "+D.getModel());
                System.out.println("Manufacturer: "+D.getManufacturer());
                System.out.println("Color: "+D.getColor(col));
                System.out.println("Loading Capacity: "+D.getLoad(load));
                System.out.println("");
                System.out.println(" if U want to update color and loading capacity press 1 and to exit press 2 ..");
                loop_option=Integer.parseInt(br.readLine());
                if(loop_option==1)
                {
                    mainEntry2();
                }

            }while(loop_option==1);

        }

    }
</code></pre>
