Cup O' Joe is a slang term for a cup of coffee. It is derived from the phrase 'cup of joe, ' which was popularized in the 1930s and is thought to have originated from the name of Josephus Daniels, Secretary of the Navy under President Woodrow Wilson. JAVA is a four-letter word that is also used to refer to coffee, specifically the type of coffee grown on the island of JAVA in Indonesia. JAVA is also the name of a programming language developed by Sun Microsystems.