We use strings in our Java programs to store and manipulate text. Strings are objects in Java, and they are immutable, which means that their contents cannot be changed once they are created.

Strings are used in a variety of ways in Java programs. For example, they can be used to store user input, to display output, and to process text.

Here are some of the reasons why we use strings in our Java programs:

• To store text

Strings are used to store text in Java programs. For example, you can use a string to store the name of a user, the contents of a file, or the text of a message.

• To display output

Strings can be used to display output in Java programs. For example, you can use a string to display the results of a calculation, the contents of a database, or the text of an error message.

• To process text

Strings can be used to process text in Java programs. For example, you can use a string to search for a particular word, to convert text to uppercase or lowercase, or to split text into individual words.

Here are some examples of how to use strings in Java programs:

• Storing text