How do I Reverse Complement a Sequence or SymbolList?

To reverse complement a DNA SymbolList or Sequence simply use the DNATools.reverseComplement(SymbolList sl) method. An equivalent method is found in RNATools for performing the same operation on RNA based Sequences and SymbolLists.

```java import org.biojava.bio.symbol.*; import org.biojava.bio.seq.*;

public class ReverseComplement {

 public static void main(String[] args) {
  
   try {
     //make a DNA SymbolList
     SymbolList symL = DNATools.createDNA("atgcacgggaactaa");

     //reverse complement it
     symL = DNATools.reverseComplement(symL);
    
     //prove that it worked
     System.out.println(symL.seqString());
   }
   catch (IllegalSymbolException ex) {
     //this will happen if you try and make the DNA  seq using non IUB symbols
     ex.printStackTrace();
   }catch (IllegalAlphabetException ex) {
     //this will happen if you try and reverse complement a non DNA (RNA) sequence using DNATools (RNATools)
     ex.printStackTrace();
   }
 }

} ```