From baaba4a281b7d54e6b5d7767989c303b854b6932 Mon Sep 17 00:00:00 2001 From: Kamal Wickramanayake Date: Sun, 22 Feb 2026 19:43:58 +0530 Subject: Directory rename --- oop/03-interfaces/Calculator.java | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 oop/03-interfaces/Calculator.java (limited to 'oop/03-interfaces/Calculator.java') diff --git a/oop/03-interfaces/Calculator.java b/oop/03-interfaces/Calculator.java new file mode 100644 index 0000000..aa716b0 --- /dev/null +++ b/oop/03-interfaces/Calculator.java @@ -0,0 +1,24 @@ +//abstract interface Calculator { +interface Calculator { + public final static double PI = 3.14; + + // double PI = 3.14; + // public static double PI = 3.14; + // public final double PI = 3.14; + // final double PI = 3.14; + // static double PI = 3.14; + + public int add(int a, int b); + // int add(int a, int b); + // abstract int add(int a, int b); + // public abstract int add(int a, int b); + + // static int add(int a, int b); // Not allowed + // int add(int a, int b); // Allowed + +// public int subtract(int a, int b); +// int subtract(int a, int b); + abstract int subtract(int a, int b); + + public double divide(double a, double b); +} -- cgit v1.2.3