#string class

today’s seltzer: aha strawberry cucumber and aha orange grapefruit

When learning Java, there is a common misperception that a string is a primitive data type. There are two data types that a variable can refer to: primitive data types and reference types. The most common initialization statement for a String variable is more like a primitive initialization statement than an object initialization statement.     String s = "ABC"; // looks just like a primitive initialization statement - somewhat confusing     String s = new String("ABC"); // obviously s is a reference variable pointing to a String object with the value of "ABC" In both of the examples above, s is a reference variable and "ABC" is the value contained in an object instance on the heap memory. A string literal is a series of characters in your code that is enclosed in double quotes. Whenever the java compiler encounters a string literal in your code, the compiler creates a new String object with its value. Based on this explanation, it should be crystal clear that the string literal "ABC" is equivalent to new String("ABC") in the compiled code.