splitted the rover.java into classes(following SRP)

Author: starVader

MoveAndChangeDirectionOfRover.java

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+
+public class MoveAndChangeDirectionOfRover{
+	public void turnLeft(NewRover r) {
+		//System.out.println("left" + face);
+		r.face = (r.face - 1) < NewRover.N ? NewRover.W : r.face -1;
+	}
+	public void turnRight(NewRover r) {
+		r.face = (r.face + 1) > NewRover.W ? NewRover.N : r.face + 1;
+	}
+	public void moveForward(NewRover r) {
+		if ((r.face == NewRover.N) && (r.y < r.limity)) {
+		  r.y++;
+		} else if ((r.face == NewRover.E) && (r.x < r.limitx)) {
+			r.x++;
+		} else if ((r.face == NewRover.S) && (r.y > 0)) {
+			r.y--;
+		} else if ((r.face == NewRover.W) && (r.x > 0)) {
+			r.x--;
+		}
+	}
+}

NewRover.java

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+
+public class NewRover {
+	final static int N = 1;
+	final static int E = 2;
+	final static int S = 3;
+	final static int W = 4;
+	int limitx = 0;
+	int limity = 0;
+	int x = 0;
+	int y = 0;
+	int face = N;
+	//Constructor for NewRover
+	NewRover(){}
+	NewRover(int limx, int limy, int x, int y, int face) {
+		this.limitx = limx;
+		this.limity = limy;
+		this.x = x;
+		this.y = y;
+		this.face = face;
+	}
+
+	public void moveRover(String commands) {
+		RoverCommandsProcessor runCommands = new RoverCommandsProcessor();
+		for (int x = 0; x < commands.length(); x++) {
+			runCommands.roverStart(this, commands.charAt(x));
+		}
+	}
+}

PrintRoverLocation.java

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+
+public class PrintRoverLocation {
+	public void printPosition(NewRover x) {
+		System.out.print(x.x + " " + x.y + " ");
+		if (x.face == 1) {
+			System.out.println('N');
+		} else if (x.face == 2) {
+			System.out.println('E');
+		} else if (x.face == 3) {
+			System.out.println('S');
+		} else if (x.face == 4) {
+			System.out.println('W');
+		}
+	}
+}

RoverCommandsProcessor.java

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+
+public class RoverCommandsProcessor {
+	MoveAndChangeDirectionOfRover change = new MoveAndChangeDirectionOfRover();
+	public void roverStart(NewRover r,char x) {
+		if (x == 'L'){
+			//System.out.println("left");
+			change.turnLeft(r);
+		} else if  (x == 'M') {
+			//System.out.println("Move");
+			change.moveForward(r);
+		} else if (x =='R') {
+			change.turnRight(r);
+		}
+	}
+}

RoverLauncher.java

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+
+public class RoverLauncher{
+	public static void main(String[] args) {
+		NewRover r1 = new NewRover(5,5,1,2,NewRover.N);
+		r1.moveRover("LMLMLMLMM");
+		NewRover r2 = new NewRover(5,5,3,3,NewRover.E);
+		r2.moveRover("RMRM");
+		NewRover r3 = new NewRover(5,5,1,5,NewRover.N);
+		r3.moveRover("LMLML");
+		PrintRoverLocation print = new PrintRoverLocation();
+		print.printPosition(r1);
+		print.printPosition(r2);
+		print.printPosition(r3);
+	}
+}