changed the file structure

Code/Steiner/oopPruefung1/.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}

Code/Steiner/oopPruefung1/README.md

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+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).

Code/Steiner/oopPruefung1/src/App.java

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+// Luca Burger
+// Aufgabe 12
+
+public class App {
+    public static void main(String[] args) throws Exception {
+        Time myTime1 = new Time(5, 42);
+        Time myTime2 = new Time(3, 27);
+        Time myTime3 = new Time(5, 20);
+        Time myTime4 = new Time(3, 10);
+        Time myTime5 = new Time(3, 20);
+
+        System.out.println(Time.subtract(myTime3, myTime4));
+        System.out.println(Time.convertToMinute(myTime1));
+
+    }
+}

Code/Steiner/oopPruefung1/src/Time.java

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+// Luca Burger
+// Aufgabe 12
+
+public class Time {
+    int hour;
+    int minute;
+
+    Time(int hour, int minute) {
+        this.hour = hour;
+        this.minute = minute;
+    }
+
+    void add(Time time, Time time2) {
+        time.hour += time2.hour;
+        time.minute += time2.minute;
+    }
+
+    static int subtract(Time time, Time time2) {
+        int minute1 = convertToMinute(time);
+        int minute2 = convertToMinute(time2);
+        return minute1 - minute2;
+
+    }
+
+    static int convertToMinute(Time time) {
+        int add = time.hour * 60;
+        return time.minute += add;
+    }
+
+    static String print(Time myTime) {
+        String text = "";
+        text += myTime.hour;
+        text += ":";
+        text += myTime.minute;
+        return text;
+    }
+}