Create 13B. Fix report card

Week 2: Methods, strings and lists/13B. Fix report card

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+Ethan has been slacking off at school, and the certificate doesn't look like something he'd dare show his parents.
+Write the method
+
+String fix(String rcard)
+
+which Ethan can use to get the certificate corrected to be salon-qualified.
+
+
+The grades should be replaced as follows:
+four --> eight
+five --> nine
+six --> ten
+
+
+Example method call:
+public static void main(String[] args) {
+    String report = "Math: four, Geography: six, Biology: seven";
+    String fixed= fix(report);
+    System.out.println(fixed);
+}
+Program outputs:
+Math: eight, Geography: ten, Biology: seven
+
+
+
+============================
+
+
+
+
+import java.util.Random;
+
+public class Test{
+    public static void main(String[] args){
+        final Random r = new Random();
+        
+        String[] subjects = "Math Chemisty English Physics PE Religion Biology Geography".split(" ");
+        String[] g = "four five six seven eight".split(" ");
+        
+        for (int i=1; i<=3; i++) {
+            System.out.println("Test " + i);
+            String rCard = "";
+            for (String s : subjects) {
+                // r.nextInt(5) - random int from 0 to 4 (inclusive)
+                rCard += s + ": " + g[r.nextInt(5)];
+                rCard +=", ";
+            }
+            
+            // removes the trailing ", " from the LAST ENTRY (<subjects>: <g>)
+            // OF THE LONG STRING
+            rCard = rCard.substring(0, rCard.length() -2);
+            
+            System.out.println("Report card before: ");
+            System.out.println("" + rCard);
+            System.out.println("Report card fixed: ");
+            System.out.println(fix(rCard));
+            System.out.println("");
+            
+        }
+    }
+
+    //ADD
+    // public static String fix(String rcard) {
+    //     String fixed = "";
+        
+    //     if (rcard.contains("four")) {
+    //         fixed = rcard.replace("four", "eight");
+    //     }
+    //     if (rcard.contains("five")) {
+    //         fixed = rcard.replace("five", "nine");
+    //     }
+    //     if (rcard.contains("six")) {
+    //         fixed = rcard.replace("six", "ten");
+    //     }
+    //     else {
+    //         fixed = rcard;
+    //     }
+        
+    //     return fixed;
+    // }
+
+    public static String fix(String rcard) {
+        // String fixed = "";
+        
+        if (rcard.contains("four")) {
+            rcard = rcard.replace("four", "eight");
+        }
+        if (rcard.contains("five")) {
+            rcard = rcard.replace("five", "nine");
+        }
+        if (rcard.contains("six")) {
+            rcard = rcard.replace("six", "ten");
+        }
+        
+        return rcard;
+    }
+
+
+
+}
+
+
+
+
+
+
+
+
+
+Test 1
+Report card before: 
+Math: five, Chemisty: six, English: eight, Physics: seven, PE: eight, Religion: eight, Biology: eight, Geography: five
+Report card fixed: 
+Math: nine, Chemisty: ten, English: eight, Physics: seven, PE: eight, Religion: eight, Biology: eight, Geography: nine
+
+Test 2
+Report card before: 
+Math: four, Chemisty: five, English: five, Physics: five, PE: seven, Religion: eight, Biology: five, Geography: seven
+Report card fixed: 
+Math: eight, Chemisty: nine, English: nine, Physics: nine, PE: seven, Religion: eight, Biology: nine, Geography: seven
+
+Test 3
+Report card before: 
+Math: six, Chemisty: six, English: four, Physics: five, PE: six, Religion: eight, Biology: five, Geography: seven
+Report card fixed: 
+Math: ten, Chemisty: ten, English: eight, Physics: nine, PE: ten, Religion: eight, Biology: nine, Geography: seven
+
+
+
+
+
+
+