huaxingao commented on pull request #29222:
URL: https://github.com/apache/spark/pull/29222#issuecomment-663708688
The change looks reasonable to me. I checked the examples, most of the
examples have RDD.collect().foreach, but a few of the examples have
RDD.foreach. For example, in ```ElementwiseProductExample```
```
println("transformedData: ")
transformedData.foreach(x => println(x))
println("transformedData2: ")
transformedData2.foreach(x => println(x))
```
I think we probably also want to change these to make all the examples to
output the result on the driver's stdout.
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