Ecosystem Program plan: Import the required java packages. Create the class Animal, Declare the array variable to fill the river. Declare the constructor. Define the print() function to read the size of river. Define the printl() function to read the length of array. Define the leftMove() function to fill ecosystem of river using bear, fish and null values with the help of random function. Define the rightMove() function to fill ecosystem of river using bear, fish and null values with the help of random function. Define the method check() to check the length of array elements and based on the value it calls the function to fill the ecosystem. Define the main() function, Declare the object for random() function. Declare the object for Animal class. Read the input using scanner class. Fill the ecosystem with bear, fish and null values using the random() function. Read the number of time steps. Print the simulation ecosystem after each step.

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Chapter 2, Problem 31P

Program Plan Intro

Ecosystem

Program plan:

Import the required java packages.

Create the class Animal,

Declare the array variable to fill the river.

Declare the constructor.

Define the print() function to read the size of river.

Define the printl() function to read the length of array.

Define the leftMove() function to fill ecosystem of river using bear, fish and null values with the help of random function.

Define the rightMove() function to fill ecosystem of river using bear, fish and null values with the help of random function.

Define the method check() to check the length of array elements and based on the value it calls the function to fill the ecosystem.

Define the main() function,

Declare the object for random() function.

Declare the object for Animal class.

Read the input using scanner class.

Fill the ecosystem with bear, fish and null values using the random() function.

Read the number of time steps.

Print the simulation ecosystem after each step.

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