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  1. class TesteStrings {
  2.     public static void main(String[] args) {
  3.         String x = "       PARA DAR TRIM       ";
  4.         System.out.println("Com ltrim: (" + ltrim(x) + ")");
  5.         System.out.println("Com rtrim: (" + rtrim(x) + ")");
  6.     }
  7.  
  8.     public static String rtrim(String toTrim) {
  9.         char[] val = toTrim.toCharArray();
  10.         int len = val.length;
  11.  
  12.         while (len > 0 && val[len - 1] <= ' ') {
  13.             len--;
  14.         }
  15.         return len < val.length ? toTrim.substring(0, len) : toTrim;
  16.     }
  17.  
  18.     public static String ltrim(String toTrim) {
  19.         int st = 0;
  20.         char[] val = toTrim.toCharArray();
  21.         int len = val.length;
  22.  
  23.         while (st < len && val[st] <= ' ') {
  24.             st++;
  25.         }
  26.         return st > 0 ? toTrim.substring(st, len) : toTrim;
  27.     }
  28. }
Success #stdin #stdout 0.03s 320576KB
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Standard input is empty
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Com ltrim: (PARA DAR TRIM       )
Com rtrim: (       PARA DAR TRIM)
https://ideone.com/6em2Yn
language:
Java (12.0.1)
created:
8 years ago
visibility:
public

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