Compile Error: Error 37 about coursera-java-for-android HOT 20 CLOSED

thank you for reply, i attached 3 files gate fillthecorral herdmanager please check once and total these files only right zipped and than have to upload ?

please see attached files now attached txt files please see and tell how to upload

package mooc.vandy.java4android.gate.logic; import java.util.Random; import mooc.vandy.java4android.gate.ui.OutputInterface; /** * This class uses your Gate class to fill the corral with snails. We * have supplied you will the code necessary to execute as an app. * You must fill in the missing logic below. */ public class FillTheCorral { /** * Reference to the OutputInterface. */ private OutputInterface mOut; /** * Constructor initializes the field. */ FillTheCorral(OutputInterface out) { mOut = out; } public void setCorralGates(Gate[] gate,Random selectDirection) { mOut.println("Initial gate setup:"); for(int i=0;i<gate.length;i++){ gate[i].setSwing(selectDirection.nextInt(3)-1); mOut.println("Gate " + i + ": " + gate[i].toString() ); } } public boolean anyCorralAvailable(Gate[] corral){ for(int i=0;i<corral.length;i++){ if(corral[i].getSwingDirection() == Gate.IN) return true; } return false; } public int corralSnails(Gate[] corral,Random rand){ int pasture = 5; int attemptCount = 0; int randomNumber = 0; int randomGate = 0; do { randomGate = rand.nextInt(corral.length); randomNumber = rand.nextInt(pasture)+1; mOut.println(randomNumber + " are trying to move through corral " + randomGate); pasture-=corral[randomGate].thru(randomNumber); attemptCount++; } while(pasture > 0); mOut.println("It took "+attemptCount+" attempts to corral all of the snails."); return attemptCount; } } package mooc.vandy.java4android.gate.logic; import java.util.Random; import mooc.vandy.java4android.gate.ui.OutputInterface; /** * This class uses your Gate class to manage a herd of snails. We * have supplied you will the code necessary to execute as an app. * You must fill in the missing logic below. */ public class HerdManager { private static final int HERD =0 ; /** * Reference to the output. */ private OutputInterface mOut; /** * The input Gate object. */ private Gate mEastGate; /** * The output Gate object. */ private Gate mWestGate; /** * Maximum number of iterations to run the simulation. */ private static final int MAX_ITERATIONS = 10; /** * Constructor initializes the fields. */ public HerdManager(OutputInterface out, Gate westGate, Gate eastGate) { mOut = out; mWestGate = westGate; mWestGate.open(Gate.IN); mEastGate = eastGate; mEastGate.open(Gate.OUT); } // TODO -- Fill your code in here public void simulateHerd(Random rand) { int pen = HERD; int pasture = 0; int randomNumber = 0; mOut.println("There are currently " + pen + " snails in the pen and " + pasture + " snails in the pasture"); for (int i = 0; i < MAX_ITERATIONS; i++) { int direction = 0; int count = 0; boolean bool; if (pen == 0) { randomNumber = rand.nextInt(pasture) + 1; count = mWestGate.thru(randomNumber); pen += count; } else if (pasture == 0) { randomNumber = rand.nextInt(pen) + 1; count = mEastGate.thru(randomNumber); pen += count; } else { bool = rand.nextBoolean(); if (bool) { randomNumber = rand.nextInt(pen) + 1; count = mEastGate.thru(randomNumber); pen += count; } else { randomNumber = rand.nextInt(pasture) + 1; count = mWestGate.thru(randomNumber); pen += count; } } pasture = HERD - pen; mOut.println("There are currently " + pen + " snails in the pen and " + pasture + " snails in the pasture"); } } } package mooc.vandy.java4android.gate.logic; /** * This file defines the Gate class. */ public class Gate { public static final int IN = 1; public static final int OUT = -1; public static final int CLOSED = 0; private int mSwing; public Gate(){ mSwing = CLOSED; } public boolean setSwing(int direction) { if(direction == IN || direction == OUT || direction == CLOSED) { mSwing = direction; return true; } return false; } public boolean open(int direction) { if (direction == IN || direction == OUT) { this.setSwing(direction); return true; } return false; } public void close() { mSwing = 0; } public int getSwingDirection() { return mSwing; } public int thru(int count) { if(mSwing == IN) return count; else if(mSwing == OUT) return - count; else return 0; } @OverRide public String toString() { if(mSwing ==0) return "This gate is closed"; else if(mSwing == IN) return "This gate is open and swings to enter the pen only"; else if (mSwing == OUT) return "This gate is open and swings to exit the pen only"; else return "This gate has an invalid swing direction"; } }

Thank you very much for clarifying the doubt. I am trying it