3.7 The String Class
As we’ve discussed, Java provides the char primitive data type, which stores one character. Almost every program, however, needs a data type that stores more than one character. Programs need to process names, addresses, or labels of many kinds. For example, many programs involve a login procedure where the user has to enter a user ID and a password. The program reads the user ID and password, compares them to values stored in a database, and allows the user to continue only if the user ID and password match the database values.
To handle this type of data, Java provides a String class. Because the String class is part of the java.lang package, it is automatically available to any Java program and we do not need to use ...
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