# Run Java code
Use the `runCode`/`run_code` method to run Java code inside the sandbox.
You'll need to pass the `language` parameter with value `java`.
<CodeGroup>
```js
import { Sandbox } from '@e2b/code-interpreter'

const sbx = await Sandbox.create()
const execution = await sbx.runCode('System.out.println("Hello, world!");', { language: 'java' })
console.log(execution)
```
```python
from e2b_code_interpreter import Sandbox

sbx = Sandbox.create()
execution = sbx.run_code('System.out.println("Hello, world!");', language="java")
print(execution)
```
</CodeGroup>