Success installing TD Ameritrade Thinkorswim (TOS) trading platform by first installing Oracle (Sun) Java Development Kit (JDK):jdk-8u112-linux-x64.rpm
I used this opensuse guide: SDB: Installing Java / openSUSE Support Database
https://en.opensuse.org/SDB:Installing_Java#Check_for_the_Java_Plugin
Perfect; Many thanks to whoever put that up because, I could not get it done alone!
and this for TOS (note TOS is using Java Ver 1.8 now)
https://forums.opensuse.org/showthread.php/504286-TD-Ameritrade-Thinkorswim-(TOS)-trading-platform-on-opensuse-13-2-x86-64-success?highlight=thinkorswim
Works for me! Have fun!