From bbbb324221552fce8d24ac3e14465e1ca9f08192 Mon Sep 17 00:00:00 2001
From: Hammy <sgoudham@gmail.com>
Date: Sat, 14 Nov 2020 23:58:48 +0000
Subject: [PATCH] Use interface

---
 Personal/SimpleOOPExample/src/Equation.java | 3 +++
 Personal/SimpleOOPExample/src/Line.java     | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 Personal/SimpleOOPExample/src/Equation.java

diff --git a/Personal/SimpleOOPExample/src/Equation.java b/Personal/SimpleOOPExample/src/Equation.java
new file mode 100644
index 0000000..84dbda4
--- /dev/null
+++ b/Personal/SimpleOOPExample/src/Equation.java
@@ -0,0 +1,3 @@
+public interface Equation {
+    void displayEquation();
+}
diff --git a/Personal/SimpleOOPExample/src/Line.java b/Personal/SimpleOOPExample/src/Line.java
index d8c233f..3374712 100644
--- a/Personal/SimpleOOPExample/src/Line.java
+++ b/Personal/SimpleOOPExample/src/Line.java
@@ -1,4 +1,4 @@
-public class Line {
+public class Line implements Equation {
     private double gradient;
     private double intercept;
 
@@ -22,6 +22,7 @@ public class Line {
         intercept = y1 - (gradient * x1);
     }
 
+    @Override
     public void displayEquation() {
         System.out.println("y = " + gradient + "x + " + intercept);
     }