Given a string str, the task is to print the first and the last character of the string.

Examples:

Input: str = “GeeksForGeeks”

Output:

First: G



Last: s

Explanation: The first character of the given string is ‘G’ and the last character of given string is ‘s’.

Input: str = “Java”

Output: 

First: J

Last: a

Explanation: The first character of given string is ‘J’ and the last character of given string is ‘a’.

Method 1: Using String.charAt() method

• The idea is to use charAt() method of String class to seek out the primary and last character during a string.
• The charAt() method accepts a parameter as an index of the character to be returned.
• The first character during a string is present at index zero and therefore the last character during a string is present at index length of string-1 .
• Now, print the primary and therefore the last character of the string.

Below is the implementation of the above approach:

// Java program to find first
// and last character of a string

class GFG {

	// Function to print first and last
	// character of a string
	public static void
	firstAndLastCharacter(String str)
	{

		// Finding string length
		int n = str.length();

		// First character of a string
		char first = str.charAt(0);

		// Last character of a string
		char last = str.charAt(n - 1);

		// Printing first and last
		// character of a string
		System.out.println("First: " + first);
		System.out.println("Last: " + last);
	}

	// Driver Code
	public static void main(String args[])
	{
		// Given string str
		String str = "GeeksForGeeks";

		// Function Call
		firstAndLastCharacter(str);
	}
}

Output:

First: G
Last: s

Method 2: Using String.toCharArray() method

• The idea is to first convert the given string into a character array using toCharArray() method of String class, then find the first and last character of a string and print it.

Below is the implementation of the above approach:

// Java program to find first
// and last character of a string

class GFG {

	// Function to print first and last
	// character of a string
	public static void
	firstAndLastCharacter(String str)
	{
		// Converting a string into
		// a character array
		char[] charArray = str.toCharArray();

		// Finding the length of
		// character array
		int n = charArray.length;

		// First character of a string
		char first = charArray[0];

		// Last character of a string
		char last = charArray[n - 1];

		// Printing first and last
		// character of a string
		System.out.println("First: " + first);
		System.out.println("Last: " + last);
	}

	// Driver Code
	public static void main(String args[])
	{
		// Given string str
		String str = "GeeksForGeeks";

		// Function Call
		firstAndLastCharacter(str);
	}
}

Output:

First: G
Last: s