From cc0f63f4c15dbe5ed2a8bb7410c7623a017bfa7c Mon Sep 17 00:00:00 2001
From: Ceiling_roof <48134466+ResilientSpring@users.noreply.github.com>
Date: Wed, 4 Oct 2023 14:02:22 +0800
Subject: [PATCH 1/2] Committed on or around 2023/10/04

---
 .../Interface/Interfaces_Can_Be_Extended.java  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Chapter8/Interface/Interfaces_Can_Be_Extended.java

diff --git a/Chapter8/Interface/Interfaces_Can_Be_Extended.java b/Chapter8/Interface/Interfaces_Can_Be_Extended.java
new file mode 100644
index 0000000..c101761
--- /dev/null
+++ b/Chapter8/Interface/Interfaces_Can_Be_Extended.java
@@ -0,0 +1,18 @@
+package Interface;
+
+interface A{
+	
+	void meth1();
+	void meth2();
+}
+
+
+
+public class Interfaces_Can_Be_Extended {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+
+	}
+
+}

From fdd7c3de3831b4b30a87b1ef9f3ef5dcbbde3c05 Mon Sep 17 00:00:00 2001
From: Ceiling_roof <48134466+ResilientSpring@users.noreply.github.com>
Date: Wed, 4 Oct 2023 14:12:36 +0800
Subject: [PATCH 2/2] Committed on or around 2023/10/04

---
 .../Interface/Interfaces_Can_Be_Extended.java | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/Chapter8/Interface/Interfaces_Can_Be_Extended.java b/Chapter8/Interface/Interfaces_Can_Be_Extended.java
index c101761..69c49e7 100644
--- a/Chapter8/Interface/Interfaces_Can_Be_Extended.java
+++ b/Chapter8/Interface/Interfaces_Can_Be_Extended.java
@@ -1,17 +1,50 @@
 package Interface;
 
+// One interface can extend another.
 interface A{
 	
 	void meth1();
 	void meth2();
 }
 
+// B now includes meth1() and meth2() - it adds meth3().
+interface B extends A{  // B inherits A.
+	void meth3();
+}
+
+// This class must implement all of A and B
+class MyClass implements B{
+
+	@Override
+	public void meth1() {
+		// TODO Auto-generated method stub
+		System.out.println("Implement meth1(). ");
+	}
+
+	@Override
+	public void meth2() {
+		// TODO Auto-generated method stub
+		System.out.println("Implement meth2(). ");
+	}
+
+	@Override
+	public void meth3() {
+		// TODO Auto-generated method stub
+		System.out.println("Implement meth3(). ");
+	}
+}
 
 
 public class Interfaces_Can_Be_Extended {
 
 	public static void main(String[] args) {
 		// TODO Auto-generated method stub
+		
+		MyClass obMyClass = new MyClass();
+		
+		obMyClass.meth1();
+		obMyClass.meth2();
+		obMyClass.meth3();
 
 	}