Strings are used to store text.
A String variable is a series of characters enclosed in double quotes:
Example
Create a String variable and assign it a value:
String carBrand = "Toyota";
String Length
In Java, a String is actually an object that comes with methods to perform various operations. For instance, you can find out the length of a string using the length() method:
Example
String carModels = "CamryCorollaRAV4Highlander";
System.out.println("The length of the carModels string is: " + carModels.length());More String Methods
Java provides many methods for strings, such as toUpperCase() and toLowerCase():
Example
String carName = "Toyota Supra"; System.out.println(carName.toUpperCase()); // Outputs "TOYOTA SUPRA" System.out.println(carName.toLowerCase()); // Outputs "toyota supra"
Finding a Character in a String
The indexOf() method returns the position of the first occurrence of a specified text within a string (including spaces):
Example
String advertisement = "Please find where 'find' appears in this car ad!";
System.out.println(advertisement.indexOf("find")); // Outputs 7