Definition of Quatrain. A quatrain is a stanza in a poem that has exactly four lines. Some quatrains comprise entire poems, while others are part of a larger structure. Quatrains usually use some form of rhyme scheme, especially the following forms: AAAA, AABB, ABAB, and ABBA.
This section contains the types of variable in java. In Java all variable must be declared before it will be used anywhere in the program. The declaration syntax is as follows : type identifier [ = value][, identifier [= value] ...] ; Here 'type' is data type and 'identifier' is the variable name. Java have following types of variable : Local variables.
Java instance variables are given separate memory for storage. If there is a need for a variable to be common to all the objects of a single java class, then the static modifier should be used in the variable declaration. Any java object that belongs to that class can modify its static variables.