how to get first value of string in java code example

Example 1: java get last char of string

public class Test {
    public static void main(String args[]) {
        String string = args[0];
        System.out.println("last character: " +
                           string.substring(string.length() - 1)); 
    }
}

Example 2: get first character of string java

var string = "freeCodecamp";

string.charAt(0); // Returns "f"

Example 3: character at index of string java

String str = "Grepper";
char ch = str.charAt(0);
//ch is assigned the value of G