Remove white space from string without using trim method?

Question

given string is \'_home sweet home__\' if user enter the mode as 0 then o/p should be \'home sweet home__\' if user enter the mod

Answer 1

A simple way :

private static String truncateSpace(String text, int mode)
{         
    if(mode==0 || mode==2)   
        for (int i = 0; i < text.length(); i++) {                
        if (text.charAt(i) != ' ') {
            text = text.substring(i, text.length());                
            break;
        }
    }
   if(mode==1 || mode==2)
        for (int i = text.length()-1; i > 0; i--) {
                if (text.charAt(i) != ' ') {
                    text = text.substring(0, i+1);
                    break;
                }
            }       
    return text;
}