How can I upgrade the java version in a AWS instance to 1.8?

Question

Currently, I have some automation scripts which spins up an instance to do stuff; but it needs java 1.8. The default java version seems to be 1.6. Is there any way in the cloud formation script or instance settings which I can upgrade/set the java version to 1.8?

Answer 1

install Java 1.8

sudo yum install java-1.8.0

change Java version

sudo alternatives --config java