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.
Based on the data type of a variable, the operating system allocates memory and decides what can be stored in the reserved memory. Therefore, by assigning different data types to variables, you can store integers, decimals, or characters in these variables. There are two data types available in Java â.
Three Ways to Declare Strings in JavaScript. You can declare JavaScript strings either by using the  new String()  string constructor, by equating a declared variable to quoted text, or by assigning the return value of methods that return strings.