Seems to be working perfectly, only 50% on grader though.

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

src/Board.java

@@ -13,7 +13,7 @@ public class Board{
 
     public String toString(){
         String toReturn = "";
-        for (int i = 0; i < squares[0].length; i++){
+        for (int i = 0; i < 10; i++){
             for (int c = 0; c < 10; c++){ // C++ :)
                 toReturn += squares[i][c] + " ";
             }
@@ -23,42 +23,73 @@ public class Board{
     }
 
     public boolean addShip(int row, int col, int len, boolean horizontal){
-        if (len > 9 || len < 0 || row > 9 || row < 0 || col > 9 || col < 0)return false;
+        if (len > 10 || len < 0 || row > 9 || row < 0 || col > 9 || col < 0)return false;
         if (horizontal){
-            if (col + len > 9){
+            if (col + len > 10){
+                return false;
+            }
+            for (int i = 0; i < squares[0].length; i++){
+                for (int c = 0; c < 10; c++){ // C++ :)
+                    if (c == row && i >= col && i <= col + len){
+                        if (squares[c][i].equals("x") || squares[c][i].equals("b"))return false;
+                        squares[c][i] = "b";
+                    }
+                }
+            }
+        } else {
+            if (row + len > 10){
                 return false;
             }
             for (int i = 0; i < squares[0].length; i++){
                 for (int c = 0; c < 10; c++){ // C++ :)
                     if (i == col && c >= row && c <= row + len){
-                        squares[i][c] = "b";
+                        if (squares[c][i].equals("x") || squares[c][i].equals("b"))return false;
-                    }
+                        squares[c][i] = "b";
-                }
-            }
-        } else {
-            if (row + len > 9){
-                return false;
-            }
-            for (int i = 0; i < squares[0].length; i++){
-                for (int c = 0; c < 10; c++){ // C++ :)
-                    if (c == row && i >= col && i <= row + col){
-                        squares[i][c] = "b";
                     }
                 }
             }
         }
-    }
-
-    public boolean foundShip(int len){
         return true;
     }
 
+    public boolean foundShip(int len){
+        for (String[] square : squares) {
+            int bInColumn = 0;
+            for (int c = 0; c < squares[0].length; c++) {
+                if (square[c].equals("b")) bInColumn++;
+                if (bInColumn == len && !(square[c + 1].equals("b"))) return true;
+            }
+        }
+        for (int i = 0; i < squares[0].length; i++){
+            int bInColumn = 0;
+            for (String[] square : squares) {
+                if (square[i].equals("b")) bInColumn++;// May need to switch this c and i, not sure
+                if (bInColumn == len && !(square[i + 1].equals("b"))) return true;
+            }
+        }
+        return false;
+    }
+
     public int shoot(int row, int col){
+        if (row > 9 || row < 0 || col > 9 || col < 0)return -1;
+        if (squares[row][col].equals("-")){
+            squares[row][col] = "m";
+            return 0;
+        }
+        if (squares[row][col].equals("x") || squares[row][col].equals("m"))return 2;
+        if (squares[row][col].equals("b")){
+            squares[row][col] = "x";
+            return 1;
+        }
         return 0;
     }
 
     public boolean gameOver(){
-        return false;
+        for (String[] arr : squares){
+            for (String e : arr){
+                if (e.equals("b"))return false;
+            }
+        }
+        return true;
     }
-
 }