From 95391ba7a2198d6be9a2dceca0da0a08531284be Mon Sep 17 00:00:00 2001
From: Martin Schmollinger <martin.schmollinger@reutlingen-university.de>
Date: Fri, 7 Apr 2023 18:47:31 +0200
Subject: [PATCH] Solution to exercise of unit 04-02
---
exercise_0402/go.mod | 3 +++
exercise_0402/main.go | 37 +++++++++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
create mode 100644 exercise_0402/go.mod
create mode 100644 exercise_0402/main.go
diff --git a/exercise_0402/go.mod b/exercise_0402/go.mod
new file mode 100644
index 0000000..a30505f
--- /dev/null
+++ b/exercise_0402/go.mod
@@ -0,0 +1,3 @@
+module gitlab.reutlingen-university.de/go-exercises/go-starter/exercise_0402
+
+go 1.20
diff --git a/exercise_0402/main.go b/exercise_0402/main.go
new file mode 100644
index 0000000..8b04b23
--- /dev/null
+++ b/exercise_0402/main.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+ "errors"
+ "fmt"
+)
+
+type BankAccount struct {
+ balance float32
+ limit float32
+}
+
+func (ba *BankAccount) Withdraw(amount float32) error {
+
+ if amount > ba.balance+ba.limit {
+ return errors.New("amount currently not available")
+ } else {
+ ba.balance -= amount
+ return nil
+ }
+}
+
+func main() {
+ ba := BankAccount{
+ balance: 1000.0,
+ limit: 3000.0,
+ }
+ fmt.Printf("%v\n", ba)
+ if err := ba.Withdraw(5000); err != nil {
+ fmt.Println(err.Error())
+ }
+ fmt.Printf("%v\n", ba)
+ if err := ba.Withdraw(1000); err != nil {
+ fmt.Println(err.Error())
+ }
+ fmt.Printf("%v\n", ba)
+}
--
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