error root kafka-sbt file java 5 1 class SimpleProducer is public should be declared in a file named SimpleProducer java

Question

Hi,

Can anyone tell me why I am getting error when running the below command.

$ sbt compile

[error] /root/kafka-sbt/file.java:5:1: class SimpleProducer is public, should be declared in a file named SimpleProducer.java
[error] public class SimpleProducer {
[error]
[error]     public static void main(String[] args) throws Exception {
[error]
[error]         String topicName = "SimpleProducerTopic";
[error]         String key = "Key1";
[error]         String value = "Value-1";
[error]
[error]         Properties props = new Properties();
[error]         props.put("bootstrap.servers", "localhost:9092,localhost:9093");
[error]         props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
[error]         props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
[error]
[error]         Producer<String, String> producer = new KafkaProducer<>(props);
[error]
[error]         ProducerRecord<String, String> record = new ProducerRecord<>(topicName, key, value);
[error]         producer.send(record);
[error]         producer.close();
[error]
[error]         System.out.println("SimpleProducer Completed.");
[error]     }
[error] }
[error] (Compile / compileIncremental) javac returned non-zero exit code
[error] Total time: 30 s, completed Feb 10, 2020 11:56:36 AM

Answer 1

Hi@akhtar,

This error is not related to sbt. Actually this error occurs because you did not named your file name as class name. Change your file name or class name and try once again.

Thank You