From 9240342b366db9999f11659a1f1c396ba418ad78 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Sat, 7 Jan 2023 18:51:03 +0100
Subject: Adds

---
 Year_2/SE/error_inheritance/Main.java    | 19 +++++++++++++++++++
 Year_2/SE/error_inheritance/Person.java  | 10 ++++++++++
 Year_2/SE/error_inheritance/Student.java | 13 +++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 Year_2/SE/error_inheritance/Main.java
 create mode 100644 Year_2/SE/error_inheritance/Person.java
 create mode 100644 Year_2/SE/error_inheritance/Student.java

(limited to 'Year_2/SE/error_inheritance')

diff --git a/Year_2/SE/error_inheritance/Main.java b/Year_2/SE/error_inheritance/Main.java
new file mode 100644
index 0000000..206a513
--- /dev/null
+++ b/Year_2/SE/error_inheritance/Main.java
@@ -0,0 +1,19 @@
+public class Main {
+    public static void main(String[] args) {
+        Student s = new Student();
+        s.setName("Santo");
+        s.setMatr("1948");
+
+        s.print();
+
+        Person p = s;
+        // That's not compile
+        // p.setMatr("1949");
+        p.setName("John");
+        p.print();
+
+        // s.name is equals to p.name, so the code below print
+        // Hello, John[...]
+        s.print();
+    }
+}
diff --git a/Year_2/SE/error_inheritance/Person.java b/Year_2/SE/error_inheritance/Person.java
new file mode 100644
index 0000000..2e52d79
--- /dev/null
+++ b/Year_2/SE/error_inheritance/Person.java
@@ -0,0 +1,10 @@
+public class Person {
+    private String name;
+    public void setName(String n) {
+        this.name = n;
+    }
+
+    public void print() {
+        System.out.println("Hello, "+ this.name);
+    }
+}
diff --git a/Year_2/SE/error_inheritance/Student.java b/Year_2/SE/error_inheritance/Student.java
new file mode 100644
index 0000000..1789489
--- /dev/null
+++ b/Year_2/SE/error_inheritance/Student.java
@@ -0,0 +1,13 @@
+public class Student extends Person {
+    private String matr;
+
+    public void setMatr(String m) {
+        this.matr = m;
+    }
+
+    @Override
+    public void print() {
+        super.print();
+        System.out.println("I'm "+ this.matr);
+    }
+}
-- 
cgit v1.2.3-18-g5258