KAFKA-9922: Update demo instructions in examples README (apache#8559)

Class kafka.examples.SimpleConsumerDemo was removed. But the java-simple-consumer-demo.sh was not removed and README was not updated. This commit removes java-simple-consumer-demo.sh and updates the demo instructions in the examples README. Author: Jiamei Xie <[email protected]> Reviewers: Konstantine Karantasis <[email protected]>
LoganZhuZzz · Apr 30, 2020 · 8a83025 · 8a83025
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diff --git a/examples/README b/examples/README
@@ -1,13 +1,12 @@
 This directory contains examples of client code that uses kafka.
 
-To run the demo: 
+To run the demo:
 
    1. Start Zookeeper and the Kafka server
-   2. For simple consumer demo, `run bin/java-simple-consumer-demo.sh`
-   3. For unlimited sync-producer-consumer run, `run bin/java-producer-consumer-demo.sh sync`
-   4. For unlimited async-producer-consumer run, `run bin/java-producer-consumer-demo.sh`
-   5. For exactly once demo run, `run bin/exactly-once-demo.sh 6 3 50000`,
+   2. For unlimited sync-producer-consumer run, `run bin/java-producer-consumer-demo.sh sync`
+   3. For unlimited async-producer-consumer run, `run bin/java-producer-consumer-demo.sh`
+   4. For exactly once demo run, `run bin/exactly-once-demo.sh 6 3 50000`,
       this means we are starting 3 EOS instances with 6 topic partitions and 50000 pre-populated records.
-   6. Some notes for exactly once demo:
-      6.1. The Kafka server has to be on broker version 2.5 or higher.
-      6.2. You could also use Intellij to run the example directly by configuring parameters as "Program arguments"
+   5. Some notes for exactly once demo:
+      5.1. The Kafka server has to be on broker version 2.5 or higher.
+      5.2. You could also use Intellij to run the example directly by configuring parameters as "Program arguments"
diff --git a/examples/bin/java-simple-consumer-demo.sh b/examples/bin/java-simple-consumer-demo.sh