A further subcategory of this type of heteronym occurs when two different words have plurals that are spelled the same, but pronounced differently: 1  Arses: plural of arse; plural of arsis (musical term). 2  Asses: plural of ass; plural of as (Roman coin). 3  Axes: plural of ax (US spelling) or axe (British spelling); plural of axis.
The Android software development kit (SDK) includes a comprehensive set of development tools. These include a debugger, libraries, a handset emulator based on QEMU, documentation, sample code, and tutorials.
The JDK is a superset of the JRE, and contains everything that is in the JRE, plus tools such as the compilers and debuggers necessary for developing applets and applications. Note that Oracle is not the only one to provide JDK.