Name of a class, which is case-sensitive, primitive types are lowercase. ... Because, by convention all class names in Java start with a capital letter, and String is a class. (The full name is java.

Why is String capitalized in Java?

The String type is capitalized because it is a class, like Object , not a primitive type like boolean or int (the other types you probably ran across). As a class, the String follows the Naming Convention for Java proposed by Sun.

Why String S is capital?

it is because Java is not a true OO language but (thankfully) an hybrid language that allows the use of primitives, which are close enough to the metal (not unlike C).