Oracle 12c database software installation steps .
Figure1:- deselect check box and click next button
Figure2:- select install database software and click next
Figure3:- select single instance database installation and click
next button
Figure4:- select language and click next button
Figure5:- select enterprise edition and click next button
Figure6:- specify the oracle base and software location and click
next button.
Figure7:- specify the Inventory Directory location.
Figure8:- click next button
Figure 9:- click installation button.
Figure10:- run the orainstRoot.sh and root.sh using root user.
Figure11:- click close button.