### Initialize CheerpJ

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/FoilSim-Applet/index.html

Call this function to initialize CheerpJ before running any applets. Ensure it's awaited for proper setup.

```javascript
await cheerpjInit();
```

--------------------------------

### Initialize and Run Server with Cheerpj

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Server-Client/Server/server.html

Use this snippet to initialize Cheerpj, configure Tailscale, create a display, and run a server application. Ensure you replace 'PasteYourKeyHere' with your actual Tailscale authentication key.

```javascript
async function () {
  await cheerpjInit({
    tailscaleAuthKey: "PasteYourKeyHere",
    tailscaleIpCb: (ip) => {
      let el = document.querySelector("#ip");
      el.value = ip;
    },
  });
  cheerpjCreateDisplay(800, 600);
  await cheerpjRunJar("/app/Server.jar");
}()
```

--------------------------------

### Initialize and Run Cheerpj Client

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Server-Client/Client/client.html

This JavaScript code initializes Cheerpj with a Tailscale authentication key, creates a display, and runs a specified JAR file. It listens for the Enter key press on an input element to trigger the execution with the provided IP address.

```javascript
async function start(ip) { await cheerpjInit({ tailscaleAuthKey: "PasteYourKeyHere", }); cheerpjCreateDisplay(800, 600); await cheerpjRunJar("/app/Client.jar", ip); }; let el = document.querySelector("#ip"); el.addEventListener("keydown", (e) => { if (e.key == "Enter") { start(el.value); } });
```

--------------------------------

### Initialize and Run Swing Browser

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Swing-Browser/browser.html

Initializes Cheerpj with Tailscale authentication and runs a Swing-based browser application from a JAR file. Replace 'PasteYourKeyHere' with your actual Tailscale authentication key.

```javascript
Browser (async function () { await cheerpjInit({ tailscaleAuthKey:"PasteYourKeyHere", }); cheerpjCreateDisplay(800, 600); await cheerpjRunJar("/app/SwingHTMLBrowser.jar"); })();
```

--------------------------------

### Initialize and Run CheerpJ Application

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/SwingSet3/index.html

Initializes CheerpJ, creates a display area within a specified container, and then runs a Java JAR application. Ensure the container element exists in the HTML.

```javascript
await cheerpjInit();
cheerpjCreateDisplay(-1, -1, document.getElementById("container"));
await cheerpjRunJar(\"`/app${location.pathname}SwingSet3.jar`\");
```

--------------------------------

### Initialize CheerpJ and Run JAR

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Interoperability/index.html

Initializes CheerpJ with native JavaScript functions and runs a specified Java JAR file. Ensure the JAR path is correct for your deployment environment.

```javascript
let exampleInstance;
async function Java_com_example_Example_sendToHTML(lib, str) {
    document.getElementById('javaOutput').innerText = "JavaScript received: " + str;
    console.log("Received input from Java: " + str);
}
async function Java_com_example_Example_nativeSetApplication(lib, myApplication) {
    window.myApplication = myApplication;
    console.log(window.myApplication);
    console.log(myApplication);
    console.log("setting application");
    // Make the inputDiv visible after initialization
    document.getElementById('inputDiv').style.display = 'block';
    /* This makes the function 'never' return */
    return new Promise(() => {});
}
(async () => {
    await cheerpjInit({
        version: 8,
        natives: {
            Java_com_example_Example_sendToHTML,
            Java_com_example_Example_nativeSetApplication
        }
    });
    cheerpjCreateDisplay(400, 300);
    // here we use the path '/app/cheerpj-meta/examples/Interoperability/example.jar' for deployment on the cloud
    // use the path '/app/example.jar' for local deployment
    // await cheerpjRunJar('/app/example.jar');
    await cheerpjRunJar('/app/cheerpj-meta/examples/Interoperability/example.jar');
})();
```

--------------------------------

### Define Function to Send Input to Java

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Interoperability/projectTemplate/index.html

Create a JavaScript function to capture user input and send it to the Java environment through CheerpJ.

```javascript
async function sendInputToJava() {
/*...*/
}
```

--------------------------------

### Include CheerpJ Loader Script

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/README.md

Include this script tag in your HTML to load the CheerpJ runtime. Ensure the version number matches your CheerpJ version.

```html
<script src="https://cjrtnc.leaningtech.com/4.3/loader.js"></script>
```

--------------------------------

### Implement Native JS for Java Interaction

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Interoperability/projectTemplate/index.html

Define JavaScript functions that will be called by Java. These functions handle receiving data from Java and updating the UI.

```javascript
async function Java_com_example_Example_sendToHTML(lib, str) {
// Update the UI with the received string
}
```

--------------------------------

### Send Input from JavaScript to Java

Source: https://github.com/leaningtech/cheerpj-meta/blob/main/examples/Interoperability/index.html

Retrieves text from an HTML input field and sends it to a Java method named 'processInput' via the CheerpJ application instance. This function is intended to be called from a user interface event.

```javascript
async function sendInputToJava() {
    // Get the input text from the HTML input box
    const inputText = document.getElementById("inputText").value;
    console.log(inputText);
    // Call the Java method with the input text
    const response = await window.myApplication.processInput(inputText);
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.