Reverse string printing method

java, methods, reverse, string

Solution

I highly recommend you to go through a basic tutorial.

You can simply do:

private static String myReverse(String str) {
    String reverse = "";
    int length = str.length();
    for( int i = length - 1 ; i >= 0 ; i-- ) {
       reverse = reverse + str.charAt(i);
    }
    return reverse;
}

And in your `main`, you simply:

String reversed = myReverse(in.nextLine());

Note that the method is `static` because you're referring to it from a static manner (`main` method). If you don't want it to be static, you'll have to access it via an object.

Also note that it's a good practice to always have curly brackets for `for` loops, even if it contains a single line.

Problem

I am trying to solve the following problem but how do write the method that accepts String as an argument? Write a method named `printReverse` that accepts a `String` as an argument and prints the characters in the opposite order. If the empty string is passed as an argument, the method should produce no output. Be sure to write a main method that convincingly demonstrates your program in action. Do not use the reverse method of the `StringBuilder` or `StringBuffer` class! So far I have solved it in a easier manner: ``` import java.util.Scanner; class ReverseString { public static void main(String args[]) { String original, reverse = ""; Scanner in = new Scanner(System.in); System.out.println("Enter a string to reverse"); original = in.nextLine(); int length = original.length(); for (int i = length - 1; i >= 0; i--) reverse = reverse + original.charAt(i); System.out.println("Reverse of entered string is: " + reverse); } } ```

Original source