Oracle JDeveloper 4K Display (3840×2160) Resolution Problem on Windows 10

 There were a lot of issues observed when running JDeveloper 12c in high resolution on Windows 10

The issues include:

• JDeveloper Buttons, Icons, Menu are illegible
• Fonts are too small

Issues observed in environment:

• Windows 10 (x64)
• Java 1.7.080
• JDeveloper 12c (12.1.3/12.2.2.4)
• Screen Resolution: 3840×2160 (4K)

Solution

•  Create a shortcut for JDeveloper on desktop then right click on it; Select “Properties” and go to “Compability” tab, find “Change high DPI settings” button at bottom and click on it. 
• Check the option “Override high DPI scaling behavior. Scaling performed by: System”. Finally click OK, click Apply!