Java Learning Note: A string of Java reference data types

 PackageCom.hgd.study;/*** String of reference data type * Stack space: small data, containing basic data type and string, variable name * Heap space: The reference data type is stored *@authorHutiger **/ Public classreferencetypesstring { Public Static voidMain (string[] args) {inti = 100;//declares an integral type, and initializes//in Java, strings will be used as reference data typesString name = "Wang Xiao Hu";//declares a string and initializes//PS: The contents of the string must be in a pair of double quotation marks, the character must be in a pair of single quotation marksString S= "100"; System.out.println (i+100); System.out.println (S+100); //+ If a string operation represents a join rather than an addition operation, the operation turns into a string}}

Java Learning Note: A string of Java reference data types