How to swap String characters in Java?

Question

How can I swap two characters in a String? For example, \"abcde\" will become \"bacde\".

Answer 1

//this is a very basic way of how to order a string alpha-wise, this does not use anything fancy and is great for school use

package string_sorter;

public class String_Sorter {

/**
 * @param args the command line arguments
 */
public static void main(String[] args) {

    String word = "jihgfedcba";
    for (int endOfString = word.length(); endOfString > 0; endOfString--) {

        int largestWord = word.charAt(0);
        int location = 0;
        for (int index = 0; index < endOfString; index++) {

            if (word.charAt(index) > largestWord) {

                largestWord = word.charAt(index);
                location = index;
            }
        }

        if (location < endOfString - 1) {

            String newString = word.substring(0, location) + word.charAt(endOfString - 1) + word.substring(location + 1, endOfString - 1) + word.charAt(location);
            word = newString;
        }
        System.out.println(word);
    }

    System.out.println(word);
}

}