Examples of java.lang.String.compareTo()

java.lang.String.compareTo()
Compares two strings lexicographically. The comparison is based on the Unicode value of each character in the strings. The character sequence represented by this String object is compared lexicographically to the character sequence represented by the argument string. The result is a negative integer if this String object lexicographically precedes the argument string. The result is a positive integer if this String object lexicographically follows the argument string. The result is zero if the strings are equal; compareTo returns 0 exactly when the {@link #equals(Object)} method would return true.
This is the definition of lexicographic ordering. If two strings are different, then either they have different characters at some index that is a valid index for both strings, or their lengths are different, or both. If they have different characters at one or more index positions, let k be the smallest such index; then the string whose character at position k has the smaller value, as determined by using the < operator, lexicographically precedes the other string. In this case, compareTo returns the difference of the two character values at position k in the two string -- that is, the value:
```
 this.charAt(k)-anotherString.charAt(k) 
```
If there is no index position at which they differ, then the shorter string lexicographically precedes the longer string. In this case, compareTo returns the difference of the lengths of the strings -- that is, the value:
```
 this.length()-anotherString.length() 
```
@param anotherString the String to be compared. @return the value 0 if the argument string is equal tothis string; a value less than 0 if this string is lexicographically less than the string argument; and a value greater than 0 if this string is lexicographically greater than the string argument.

        // get the repository where the container is, from the key
        String repository = (String)index_table.get(key);
        //System.out.println("container: "+key+"is in: "+repository);


        // read the container recursively
        if (repository.compareTo(ROOT_REP)!=0){
          recursiveReadContainer(repository,1);
        }
      }
    }
  }

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          toWrite =true ;
          Integer key = rl.getKeyFromHolder(atth[i]);
          if (key != null && recursive == true){
//            System.out.println("recursive perform");
            String chrep = (String)index_table.get(key) ;
            if (chrep.compareTo(ROOT_REP)!=0){
              recursivePerformAction(action,chrep,deep+1);
            }
          } 
//          System.out.println(cur_stack.toString());
        } else {

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//          System.out.println(cur_stack.toString());
        } else {
          Integer key = rl.getKeyFromHolder(atth[i]);
          if (key != null && recursive == true){
            String chrep = (String)index_table.get(key) ;
            if (chrep.compareTo(ROOT_REP)!=0){
//              System.out.println("try in :"+chrep);
              tryAction(action,chrep,identifier,recursive,deep+1);
            }
          }
        }

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      rl.performActionOnFrames(action,atth[i],deep);
      Integer key = rl.getKeyFromHolder(atth[i]);
      // recursive call if it is a container 
      if (key != null){
        String chrep = (String)index_table.get(key) ;
        if (chrep.compareTo(ROOT_REP)!=0)
          recursivePerformAction(action,chrep,deep+1);
      }
    } 
    // System.out.println("write holders in "+rf.getRep());
    rf.writeHolders(); // commit changes

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