Question

How to implement a remove trailing whitespaces function in Java

Answer 1

public class MyClass {
    public static String remove_trailing_whitespace(String s) { 
        if (s == null)
            return null;
            
        int len = s.length();
        for (; len > 0; len--) {
            if (!Character.isWhitespace(s.charAt(len - 1)))
                break;
        }
        return s.substring(0, len);
    }
    public static void main(String args[]) {
        String s = "       java php python      ";   
 
        s = remove_trailing_whitespace(s);
 
        System.out.println(s);
    }
}
  
 
 
  
/*
run:
    
       java php python
 
*/

 

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