Question

Please comment the important lines in the .java file as shown in the template. The important lines including but not limited to i) variables, ii) for-loop, iii) while-loop, iv) if-else statement, iv) methods. Please use your own words to describe what is your purpose to write this line.

Panther ID - 002357394

Purpose: Instance variables belong to the instance of a class, i.e., an object. Every object of that class has its own copy of that instance variable. Changes made to a particular instance variable_donot reflect in other instances of that class. Class variables are known as static variables. There is only one copy of that variable that is shared with all instances of that class. If changes are made to that variable, all other instances will see the change. Instance methods belong to the object of the class, can only be called after an object of its class is created. Static/class methods can be called without creating an object of class. They are referenced by the class name itself or reference to the Object of that class. In this assignment, we will practice how to use multiple classes and objects as well as class variables/methods. Once a class is available, it's like we have a new data type. Variables can be defined with a type of this class and can refer to an object of this class. Methods can use this class as parameter type or return type. Task: 1. Write a Park class with the following instance variables: 1) String ParkName; 2) int ParkID; 3) String Park Shape; and 4) double ParkLength. Please implement the following methods: i) ParkNameGetter(): Return the name of the park. ii) ParkIDGetterO: Return the ID of the park. iii) ParkLengthGetter(): Return the length of the park. Note that, 1) ParkLength is private while the other variables are public. 2) ParkShape only includes "Circle” and “Square". 3) Parks may have the same name, but ParkID is unique. 4) Students should create the correct constructor. 2. Write a ParkClient class. i) Create an array of Park: - ParkArray has 5 elements; - Set the first park in Park Array with the following parameters: ParkName: CSC1302, ParkID: Last 2 digits of PantherID, ParkShape: “Circle”, Park Length: 5. - Set the second park in ParkArray with the following parameters: ParkName: CSC1302, ParkID: Last 2 digits of PantherID + 3, ParkShape: “Square”, ParkLength: 6. - Randomly Set the other three parks in Park Array. ii) Print out the information of the Largest Park of all parks in the ParkArray:

Answer 1

Java code for ablove problem

class Park
{
   public String ParkName;
   public int ParkID;
   public String ParkShape;
   private double ParkLength;
   Park(String ParkName,int ParkID,String ParkShape,double ParkLength)
   {
       this.ParkName=ParkName;
       this.ParkID=ParkID;
       this.ParkShape=ParkShape;
       this.ParkLength=ParkLength;
   }
   public String ParkNameGetter()
   {
       return this.ParkName;
   }
   public int ParkIDGetter()
   {
       return this.ParkID;
   }
   public double ParkLengthGetter()
   {
       return this.ParkLength;
   }
   public String toString()
   {
       return "Name: "+this.ParkName+"\nID: "+this.ParkID+"\nShape: "+this.ParkShape+"\nLength: "+this.ParkLength+"\n";
   }
}
class ParkClient
{
   public static void main(String args[])
   {
       Park [] ParkArray=new Park[5];
       ParkArray[0]=new Park("CSC1302",94,"Circle",5);
       ParkArray[1]=new Park("CSC1302",97,"Square",6);
       ParkArray[2]=new Park("CSC1303",100,"Circle",4);
       ParkArray[3]=new Park("CSC1304",103,"Circle",5);
       ParkArray[4]=new Park("CSC1304",106,"Square",9);
      
       for(int i=0;i<5;i++)
       {
           System.out.println("Information of Park-"+(i+1));
           System.out.println(ParkArray[i]);
       }
      
       double max_len=0;
       int max_len_index=-1;
       for(int i=0;i<5;i++)
       {
           if(max_len<ParkArray[i].ParkLengthGetter())
           {
               max_len=ParkArray[i].ParkLengthGetter();
               max_len_index=i;
           }
       }
      
       System.out.println("Information of Largest Park:");
       System.out.println(ParkArray[max_len_index]);
      
   }
}

Sample output

Information of Park-1 Name: CSC1302 ID: 94 Shape: Circle Length: 5.0 Information of Park-2 Name: CSC1302 ID: 97 Shape: Square Length: 6.0 Information of Park-3 Name: CSC1303 ID: 100 Shape: Circle Length: 4.0 Information of Park-4 Name: CSC1304 ID: 103 Shape: Circle Length: 5.0 Information of Park-5 Name: CSC1304 ID: 106 Shape: Square Length: 9.0 Information of Largest Park: Name: CSC1304 ID: 106 shape: Square Length: 9.0

Mention in comments if any mistakes or errors are found. Thank you.