To solve the maze escape problem Program plan: In the file “ PartialSolution.java ”, create an interface “ PartialSolution”, Create an interface that creates a partial solution to a backtracking problem. Declare a method “examine()” that examines a partial solution. Declare a method “extend()” that yields all extensions of this partial solution. In the file “ Location.java ”, create a class “ Location”, Declare the variables. Define the constructor. Define a method “getRow()” to get the row of this location. Define a method “getColumn()” to get the column of this location. Define a method “toString()” to print the formatted string. Define a method “equals()” to check for equal location. In the file “ Maze.java ”, create a class “ Maze”, Declare the two-dimensional array variable. Define the constructor to construct a maze from a string describing its contents. Define a method “emptyNeighbors()” to empty neighbors. Define a method “isExit()” to check whether a location is an exit. Define a method “isValid()” to check whether a location is within the maze. Define a method “isEmpty()” to check whether a location is within the maze and not a wall. In the file “ MazePartialSolution.java”, import necessary package, and create a class “ MazePartialSolution”, Declare necessary variables. Define default and parameterized constructor. Define a method “examine” to examine a partial solution. Define a method “extend()” to yield all extensions of this partial solution. Define a method “toString()” to return formatted string. In the file “ Solver.java ”, create a class “ Solver” that solves any problem using backtracking, Define a method “solve()” to print all solutions to the problem that can be extended from a given partial solution. In the file “ MazeSolver.java”, import necessary packages, and create a class “MazeSolver”, Define the method “main()”, Create an object for “Maze”. Call the method “solve()”.

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Chapter 13, Problem 8PP

Program Plan Intro

To solve the maze escape problem

Program plan:

In the file “PartialSolution.java”, create an interface “PartialSolution”,

Create an interface that creates a partial solution to a backtracking problem.

Declare a method “examine()” that examines a partial solution.

Declare a method “extend()” that yields all extensions of this partial solution.

In the file “Location.java”, create a class “Location”,

Declare the variables.

Define the constructor.

Define a method “getRow()” to get the row of this location.

Define a method “getColumn()” to get the column of this location.

Define a method “toString()” to print the formatted string.

Define a method “equals()” to check for equal location.

In the file “Maze.java”, create a class “Maze”,

Declare the two-dimensional array variable.

Define the constructor to construct a maze from a string describing its contents.

Define a method “emptyNeighbors()” to empty neighbors.

Define a method “isExit()” to check whether a location is an exit.

Define a method “isValid()” to check whether a location is within the maze.

Define a method “isEmpty()” to check whether a location is within the maze and not a wall.

In the file “MazePartialSolution.java”, import necessary package, and create a class “MazePartialSolution”,

Declare necessary variables.

Define default and parameterized constructor.

Define a method “examine” to examine a partial solution.

Define a method “extend()” to yield all extensions of this partial solution.

Define a method “toString()” to return formatted string.

In the file “Solver.java”, create a class “Solver” that solves any problem using backtracking,

Define a method “solve()” to print all solutions to the problem that can be extended from a given partial solution.

In the file “MazeSolver.java”, import necessary packages, and create a class “MazeSolver”,

Define the method “main()”,

Create an object for “Maze”.

Call the method “solve()”.

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