How to remove only trailing spaces of a string in Java and keep leading spaces?

Question

The trim() function removes both the trailing and leading space, however, if I only want to remove the trailing space of a string, how can I do it?

Answer 1

The most practical answer is @Micha's, Ahmad's is reverse of what you wanted so but here's what I came up with in case you'd prefer not to use unfamiliar tools or to see a concrete approach.

public String trimEnd( String myString ) {

    for ( int i = myString.length() - 1; i >= 0; --i ) {
        if ( myString.charAt(i) == ' ' ) {
            continue;
        } else {
            myString = myString.substring( 0, ( i + 1 ) );
            break;
        }
    }
    return myString;
}

Used like:

public static void main( String[] args ) {

    String s = "    Some text here   ";
    System.out.println( s + "|" );
    s = trimEnd( s );
    System.out.println( s + "|" );
}

Output:

Some text here   |
Some text here|