Installers for JDK 7u2 to 7u5 install the JDK first, then start the JavaFX SDK installer, which installs JavaFX SDK in the default directory C:\Program Files\Oracle\JavaFX 2.0 SDK or C:\Program Files (x86)\Oracle\JavaFX 2.0 SDK on 64-bit operating systems. Installers for JDK 7u6 and later install the JavaFX SDK and integrate it into the JDK installation directory. When finished with the installation, you can delete the downloaded file to recover disk space. Then, follow the instructions the installer provides.
If you downloaded either file instead of running it directly from the web site, double-click the installer's icon. The file jdk-8 version -windows-圆4.exe is the JDK installer for 64-bit systems. The file jdk-8 version -windows-i586-i.exe is the JDK installer for 32-bit systems. You must have administrative permissions in order to install the JDK on Microsoft Windows.