added method demo

pamd72120 · pamd72120 · commit 792de99fb919 · 2018-07-26T10:13:10.000-05:00
diff --git a/ch04/HelloMethod.java b/ch04/HelloMethod.java
@@ -0,0 +1,41 @@
+public class HelloMethod
+{
+    public static void main(String[] args)
+    {
+        String firstName = "Fred";
+        String secondName = "Wilma";
+        String lastName = "Flintstone";
+
+        printHelloWorld(firstName, lastName);
+        printHelloWorld(secondName, lastName);
+
+        int firstNum = 5;
+        int secondNum = 10;
+        printOhNo(firstName, firstNum, secondNum, false);
+
+        printNumberNoSign(5);
+        printNumberNoSign(-5);
+    }
+
+    public static void printNumberNoSign(int number)
+    {
+        int positiveNumber = Math.abs(number);
+        System.out.println("The number is " + positiveNumber);
+    }
+
+    public static void printHelloWorld(String fName, String lName)
+    {
+        System.out.println("Hello World " + fName + " " + lName);
+    }
+
+    public static void printOhNo(String cat, int firstNumber, int secondNumber, boolean isAPerson)
+    {
+        System.out.println("OH NO!!!!!!!!!!!!!!!!!!!!!!! " + cat);
+        System.out.println("Is a person? " + isAPerson);
+        System.out.println("First Number is " + firstNumber);
+        System.out.println("Second Number is " + secondNumber);
+        System.out.println("total is " + (firstNumber + secondNumber));
+    }
+
+
+}
