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Task/Strip-whitespace-from-a-string-Top-and-tail/Java/strip-whitespace-from-a-string-top-and-tail.java

@@ -0,0 +1,24 @@
+public class Trims{
+   public static String ltrim(String s){
+      int i = 0;
+      while (i < s.length() && Character.isWhitespace(s.charAt(i))){
+         i++;
+      }
+      return s.substring(i);
+   }
+
+   public static String rtrim(String s){
+      int i = s.length() - 1;
+      while (i > 0 && Character.isWhitespace(s.charAt(i))){
+         i--;
+      }
+      return s.substring(0, i + 1);
+   }
+
+   public static void main(String[] args){
+      String s = " \t \r \n String with spaces  \t  \r  \n  ";
+      System.out.println(ltrim(s));
+      System.out.println(rtrim(s));
+      System.out.println(s.trim()); //trims both ends
+   }
+}