Use Java to Write two classes: Fish and FishTank ? You should be able to add up

Question

Use Java to Write two classes: Fish and FishTank
? You should be able to add up to three fish to the tank.
? You can only have one aggressive fish in each tank.
? Allow a user to create and name a fish, specify if it is aggressive and add it
to the tank.
? Each time a user adds a fish, make sure it will fit and is the only aggressive
fish in the tank.
? Allow the user to see all the fish in the tank.
? Allow the user to remove fish from the tank.
? Allow the user to see how long each fish has been in the tank.

Explanation / Answer

import java.io.*;
import java.util.*;
public class Fish
{
   String name;
   int aggr;
   Fish(String name,String aggr1)
   {
      
   }
   public static void main()
   {
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter a fish name");
       Fish.name = sc. nextLine();
       System.out.println("Press 1 if aggresive");
       Fish.aggr = sc.nextInt();
       System.out.println("Name a tank");
       String tank= sc. nextLine();
       Fishtank valueOf(tank)= new Fishtank(name,aggr);
   }
}

public class Fishtank
{
   int count =0;
   int aggr_flg;
   long start_time;
   Fishtank (String nme, int flg )
   {
       int agg=0;
       if (flg == 1)
       {
           agg=1;
       }
       else
       {
           System.out.println("can't adjust more than 1 aggresive fish");
           break;
       }
       if (count> 3)
       {
           System.out.println("tank full");
           break;
       }
       count ++;
       start_time= System.currentTimeMills();
       System.out.println("Fish name "+nme+" here since "+start_time);
   }
}

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