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.
Strings in Java â Whatâs so special about a String? Strings in Java are a widely used data type (and in most programming languages), they allow us to store anything and everything that has to do with words, sentences, phone numbers, or even just regular numbers. But, as useful as they are, youâll need to know a few important things about Strings before you go wild using them in your code.