public class Cow
{
     public int age;
     public String color;
 
     public Cow()
     {
          age = 3;
          color = "red";
     }

     public void graze()
     {
      ......

public class Automobile
{
     // For simplicity sake, I'll create each variable separately

     private String nameOfCar;
     private int tankSize;
     private int topSpeed;
     private int mileage;
 
     public Automobile(String name, int gasSize, int highSpeed, int theMileage)
     {
          nameOfCar = name;
          tankSize = gasSize;
          topSpeed = highSpeed;
          mileage = theMileage;
     }
     private String getInfo()
     {
          // The "\n" means to jump to the next line, like the Return key

              System.out.println("Name of automobile: " + nameOfCar + "\nTank
Size: " + tankSize + "\nTop Speed: " + topSpeed + "\nGas Mileage: " +
mileage);
     }
}

public class Tester
{
	public static void main(String[] args)
	{
                // You can make prompts for the user to enter information for
                // their own automobile, but for now, I'll just show how to
                // create (1) automobile. Let's say it is a Dodge Ram, which 
                // will have a 20 gallon tank, a top speed of 120 mph 
                // (yeah...right.. :p), and has a gas mileage of 12 miles per
                // gallon.

		Automobile Dodge = new Automobile("Dodge Ram truck!",20,120,12);

                // Now, you have an object named "Dodge" of class "Automobile".
                // Now, remember when we wrote the method "getInfo()" in 
                // class Automobile? Since "Dodge" is now of class "Automobile", 
                // it can call its methods. 

                 Dodge.getInfo();

                // The following will be printed out to the screen:
                //  Name of automobile: Dodge Ram truck!
                //  Tank Size: 20
                //  Top Speed: 120
                //  Gas Mileage: 12
         }
}