How to run java main and scala main

[Pallavim54]

From where i need to run this command
spark-submit --class com.cloudera.sparkwordcount.SparkWordCount --master local
target/sparkwordcount-0.0.1-SNAPSHOT.jar 2

Do I able to ran java example also with above command?

[bingyupj]

JavaWordCount can't compile well, it should replace tup._2 with tup._2()
,the same as other tuple.