Ubuntu :: Install LATEST Sun JRE Java From Terminal?

First you'll want to remove the old JRE or openJDK (if you have it). When JRE is installed from the repositories, do it like this: System - Administration - Synaptic Package Manager

Query: sun java Tick all installed packages and choose complete removal. When it's installed manually in /opt/java, see the instruction at the bottom of this column (under the header Removal). If you don't have JRE, then you'll probably have openJDK. That one should be completely removed as well. That can also be done with Synaptic Package Manager (query: openjdk).

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