improve ternary code section

Author: pearcej

source/ch4_conditionals.ptx

@@ -385,17 +385,15 @@ The <c>switch</c> statement is not used very often, and we recommend you do not
 
     </section>
 
-    <section xml:id="boolean-operators">
-        <title>Boolean Operators</title>
+    <section xml:id="ternary-operator">
+        <title>The Ternary Operator</title>
 
         <p><idx>Boolean operators</idx> <idx>simple comparisons</idx> <idx>compound Boolean expressions</idx>
 The conditionals used in the if statement can be <term>Boolean variables</term>, <term>simple comparisons</term>, and <term>compound Boolean expressions</term>.
         </p>
 
 <p><idx>ternary operator</idx>
-Java also supports the <c>boolean</c> expression using the ternary operator 
-<c>condition ? trueValue : falseValue</c>. This operator tests a condition as part 
-of an assignment statement. The following table summarizes how this works:
+Java also provides the ternary operator <c>condition ? valueIfTrue : valueIfFalse</c>, which lets you use a <c>boolean</c> test directly inside an assignment. If the condition is true, the first value is chosen; otherwise, the second value is used. The table below summarizes how it works:
 </p>
 
 <table>
@@ -437,27 +435,35 @@ of an assignment statement. The following table summarizes how this works:
 </table>
 
 <p>
-Using this operator can make code shorter and more readable in cases where a simple conditional assignment is needed.
+Using this operator can make code shorter and more readable in cases where a simple conditional assignment is needed. See the following as an example where we see the same logic implemented in two different ways.
 </p>
-        <program xml:id="java-ternary" interactive ="activecode" language ="java">
+        <program xml:id="java-ternary" interactive="activecode" language ="java">
             <code>
-                class Main {
-                        public static void main(String[] args) {
-                        int a = 4;
-                        int x = 2;
-
-                        // Using the ternary operator
-                        a = (a % 2 == 0) ? a * a : 3 * x - 1;
+public class Ternary {
+    public static void main(String[] args) {
+        int a = 4;
+        int x = 2;
+        int outp;
+
+        // ternary:
+        outp = (a % 2 == 0) ? (a * a) : (3 * x - 1);
+        System.out.println("Result: " + outp);
+
+        // Equivalent using if/else
+        if (a % 2 == 0) {
+            outp = a * a;
+        } else {
+            outp = 3 * x - 1;
+        }
 
-                        System.out.println("Result: " + a);
-                    }
-                }
-                  
+        System.out.println("Result: " + outp);
+    }
+}
             </code>
         </program>
 
         <p>
-            In this example we are using this ternary operator to assign a value to <c>a</c> based on whether <c>a</c> is even or odd. If <c>a</c> is even, it will be squared; if odd, it will be instead be calculated as <c>3 * x - 1</c>. This is a concise way to write conditional assignments in Java. However, it should be used reasonably, as it can make code less readable if overused or used in complex expressions.
+            In this example we are using this ternary operator to assign a value to <c>a</c> based on whether <c>a</c> is even or odd. If <c>a</c> is even, it will be squared; if odd, it will be instead be calculated as <c>3 * x - 1</c>. This is a concise way to write conditional assignments in Java. However, you might want to use it sparingly, as it can make code less readable if overused or used with complex expressions.
         </p>