Definition of beaker for Students. : a cup or glass with a wide mouth and usually a lip for pouring that is used especially in science laboratories for holding and measuring liquids.
In Microsoft Windows, each environment variable's default value is stored in the Windows registry or set in the AUTOEXEC.BAT file. On Unix, a setuid program is given an environment chosen by its caller, but it runs with different authority from its caller.
set JAVA_HOME or other environment variables in Windows. open new command prompt, type set. or echo %JAVA_HOME% to see if JAVA_HOME environment variable is set. 1) Right-click the My Computer icon and select Properties. 2) Click the Advanced tab. 3) Click the Environment Variables button. 4) Under System Variables, click New. 5) Enter the variable name as JAVA_HOME.