Strings

Java Strings

Strings are employed to store textual data.

A String variable encompasses a sequence of characters enclosed within double quotes.

Example

Declare a variable of type String and initialize it with a value.

String greeting = "Hello";

String Length

In Java, a String is an object that incorporates methods capable of executing various operations on strings. For instance, you can determine the length of a string using the length() method.

Example

String txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

System.out.println("The length of the txt string is: " + txt.length());

More String Methods

Numerous string methods are accessible, such as toUpperCase() and toLowerCase().

Example

String txt = "Hello World";
System.out.println(txt.toUpperCase());   // Outputs "HELLO WORLD"
System.out.println(txt.toLowerCase()); // Outputs "hello world"

Finding a Character in a String

The indexOf() method provides the position of the initial occurrence of a specified text within a string, considering whitespace as well.

Example

String txt = "Please locate where 'locate' occurs!";
System.out.println(txt.indexOf("locate")); // Outputs 7

Complete String Reference

To access a comprehensive guide on String methods in Java, visit our Java String Methods Reference.

This resource includes detailed explanations and examples for each string method.