tidy up Ch15

ChrisMayfield · ChrisMayfield · commit c215058330ad · 2021-01-30T13:42:29.000-05:00
diff --git a/ch15/Cell.java b/ch15/Cell.java
@@ -3,6 +3,9 @@
 
 /**
  * A square at a fixed location that changes color.
+ * 
+ * @author Chris Mayfield
+ * @version 7.1.0
  */
 public class Cell {
 
@@ -40,28 +43,32 @@ public void draw(Graphics g) {
     }
 
     /**
-     * @return true if the cell is OFF
+     * Tests whether the cell is off.
+     * 
+     * @return true if the cell is off
      */
     public boolean isOff() {
         return state == 0;
     }
 
     /**
-     * @return true if the cell is ON
+     * Tests whether the cell is on.
+     * 
+     * @return true if the cell is on
      */
     public boolean isOn() {
         return state == 1;
     }
 
     /**
-     * Sets the cell's state to OFF.
+     * Sets the cell's state to off.
      */
     public void turnOff() {
         state = 0;
     }
 
     /**
-     * Sets the cell's state to ON.
+     * Sets the cell's state to on.
      */
     public void turnOn() {
         state = 1;
diff --git a/ch15/Conway.java b/ch15/Conway.java
@@ -2,6 +2,9 @@
 
 /**
  * Conway's Game of Life.
+ * 
+ * @author Chris Mayfield
+ * @version 7.1.0
  */
 public class Conway {
 
@@ -109,8 +112,6 @@ public void update() {
 
     /**
      * The simulation loop.
-     * 
-     * @param rate frames per second
      */
     private void mainloop() {
         while (true) {
diff --git a/ch15/GridCanvas.java b/ch15/GridCanvas.java
@@ -3,6 +3,9 @@
 
 /**
  * 2D array of cells representing a rectangular grid.
+ * 
+ * @author Chris Mayfield
+ * @version 7.1.0
  */
 public class GridCanvas extends Canvas {
 
@@ -33,20 +36,26 @@ public GridCanvas(int rows, int cols, int size) {
     }
 
     /**
+     * Gets the number of rows.
+     * 
      * @return number of rows
      */
     public int numRows() {
         return array.length;
     }
 
     /**
+     * Gets the number of columns.
+     * 
      * @return number of columns
      */
     public int numCols() {
         return array[0].length;
     }
 
     /**
+     * Gets the cell at index (r, c).
+     * 
      * @param r row index
      * @param c column index
      * @return the cell
