Java - String charAt() Method

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Description

The Java String charAt() method is used to retrieve the character at the specified index. The indexes refer to the character position in the sequence. The first char value represents the 0th index, and the next char value represents the 1st index, and so on. The indexes start with 0 index and end with the length()-1 index.

A string is an object that holds the sequence of the characters. The java.lang.string class represents the string in Java. The strings are constant in Java their values cannot be changed after they are created.

The charAt() method accepts a parameter as an integer that holds the value of the index. It throws an exception if the index value is negative or greater than the sequence length.

Syntax

Following is the syntax of the Java String charAt() method −

public char charAt(int index)

Parameters