正则表达式用 y 轴替换 x 轴（Java）

Question

I have a string with coordinates I want to pass on my.kml file. But in order for it to work I have to replace the numbers on the x axis with the numbers on the y axis ( photo ).I am working on android studio. Is there a Regex for this so that I can use the.replace() method?

Answer 1

That's not how regex works. When it comes to string manipulation, simple is best. Try something like this:

public static String flipCoords(String input) {
    StringBuilder output = new StringBuilder();
    String[] coords = input.split("\\s");
    for (String coord : coords) {
        String[] point = coord.split(",");
        if (output.length() > 0) {
            output.append(' ');
        }
        output.append(point[1]).append(',').append(point[0]);
    }
    
    return output.toString();
}