How do I return the first character of a string?

How do I return the first character of a string?

Method 1: Using String. The charAt() method accepts a parameter as an index of the character to be returned. The first character in a string is present at index zero and the last character in a string is present at index length of string-1 . Now, print the first and the last character of the string.

What is charAt () in Java?

The Java charAt() method returns a character at a specific index position in a string. The first character in a string has the index position 0. The Java charAt() method is used to find the character associated with a certain position in a string. It can also return multiple characters in a string.

How do you return a character index in a string in Java?

Java String indexOf(String substring) Method Example

1. public class IndexOfExample2 {
2. public static void main(String[] args) {
3. String s1 = “This is indexOf method”;
4. // Passing Substring.
5. int index = s1.indexOf(“method”); //Returns the index of this substring.
6. System.out.println(“index of substring “+index);
7. }
8. }

How do I get the first character of a string in Swift?

2 ways to find the first and last character of a string in Swift

1. var first: Character? var last: Character?
2. let givenString = “hello world” if let firstChar = givenString.
3. var startIndex: String.
4. func index(before: String.
5. let givenString = “hello world” print(givenString[givenString.

Is there a reverse string method in Java?

2. String class in Java does not have reverse() method, however StringBuilder class has built in reverse() method.

What is return type of the function equalsIgnoreCase ()?

The equalsIgnoreCase() method of the String class compares two strings irrespective of the case (lower or upper) of the string. This method returns a boolean value, true if the argument is not null and represents an equivalent String ignoring case, else false.

What is the first index of a string?

The index of the first character is 0 , and the index of the last character of a string called stringName is stringName. length – 1 .

What does .substring do in Java?

Java String substring() Method example. The substring(int beginIndex, int endIndex) method of the String class. It returns a new string that is a substring of this string. The substring begins at the specified beginIndex and extends to the character at index endIndex – 1.

How do I reverse a string in Swift?

To reverse a string in Swift, we can use the built-in `reversed() method.

How to get first n characters of a string in Java?

To access the first n characters of a string in Java, we can use the built-in substring () method by passing 0, n as an arguments to it. 0 is the first character index (that is start position), n is the number of characters we need to get from a string.

How to find the first and last character in a string?

The idea is to use charAt () method of String class to find the first and last character in a string. The charAt () method accepts a parameter as an index of the character to be returned. The first character in a string is present at index zero and the last character in a string is present at index length of string-1.

How does the charAt ( ) method in Java work?

The charAt () method returns the character at the specified index in a string. The index of the first character is 0, the second character is 1, and so on. A char value at the specified index of this string.

How is the first character of a string indexed?

Like arrays and Lists, String is 0-indexed, i.e. the first character is at index 0 and the last character is at index length() – 1.