From 43fdb5296e4010cd9a69d2c15e0f713f72e1f5f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E9=87=91=E6=B2=B3?= <1262113654@qq.com>
Date: Fri, 7 Aug 2020 02:22:18 +0800
Subject: [PATCH] =?UTF-8?q?=E5=B0=9D=E8=AF=95=E5=B0=86=E7=B1=BB=E9=9B=86?=
 =?UTF-8?q?=E6=88=90=E5=88=B0=E5=90=8C=E4=B8=80=E7=9B=AE=E5=BD=95=E4=B8=8B?=
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reset
---
 collaboration/jjcc.java | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 collaboration/jjcc.java

diff --git a/collaboration/jjcc.java b/collaboration/jjcc.java
new file mode 100644
index 0000000..1422948
--- /dev/null
+++ b/collaboration/jjcc.java
@@ -0,0 +1,26 @@
+
+public class jjcc {
+    public static void main(String[] args)
+    {
+        System.out.println(add(1,2));
+        System.out.println(sub(1,2));
+        System.out.println(mul(1,2));
+        System.out.println(div(1,2));
+    }
+    public static double add(double a,double b)
+    {
+        return a+b;
+    }
+    public static double sub(double a,double b)
+    {
+        return a-b;
+    }
+    public static double mul(double a,double b)
+    {
+        return a*b;
+    }
+    public static double div(double a,double b)
+    {
+        return (double)a/b;
+    }
+}