Question

JAVA PROGRAM:

FINISH THE FOLLOWING METHOD IN THE CLASS BasicBioinformatics.

public class BasicBioinformatics {

/**

* Calculates and returns the reverse complement of a DNA sequence. In DNA sequences, 'A' and 'T'

* are complements of each other, as are 'C' and 'G'. The reverse complement is formed by

* reversing the symbols of a sequence, then taking the complement of each symbol (e.g., the

* reverse complement of "GTCA" is "TGAC").

*

* @param dna a char array representing a DNA sequence of arbitrary length, containing only the

* characters A, C, G and T

*

* @return a char array representation of the reverse complement of the given sequence

*/

public static char[] reverseComplement(char[] dna) {

// INPUT CODE

}

/**

* Calculates and returns the reverse complement of a DNA sequence. In DNA sequences, 'A' and 'T'

* are complements of each other, as are 'C' and 'G'. The reverse complement is formed by

* reversing the symbols of a sequence, then taking the complement of each symbol (e.g., the

* reverse complement of "GTCA" is "TGAC").

*

* @param dna a string representing a DNA sequence of arbitrary length, containing only the

* characters A, C, G and T

*

* @return a String representation of the reverse complement of the given sequence

*/

public static String reverseComplement(String dna) {

return new String(reverseComplement(dna.toCharArray()));

} }

Answer 1

Please find the answer below.
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BasicBioinformatics.java

package staticclasses;
public class BasicBioinformatics {
   /**
   * Calculates and returns the reverse complement of a DNA sequence. In DNA sequences, 'A' and 'T'
   * are complements of each other, as are 'C' and 'G'. The reverse complement is formed by
   * reversing the symbols of a sequence, then taking the complement of each symbol (e.g., the
   * reverse complement of "GTCA" is "TGAC").
   *
   * @param dna a char array representing a DNA sequence of arbitrary length, containing only the
   * characters A, C, G and T
   *
   * @return a char array representation of the reverse complement of the given sequence
   */
   public static char[] reverseComplement(char[] dna) {
       char res[] = new char[dna.length];
       int count=0;
       for (int i =dna.length-1 ; i >= 0; i--) {
           if(dna[i]=='A') {
               res[count]='T';
           }else if(dna[i]=='T') {
               res[count]='A';
           }else if(dna[i]=='C') {
               res[count]='G';
           }else if(dna[i]=='G') {
               res[count]='C';
           }
           count++;
       }
       return res;
   }
   /**
   * Calculates and returns the reverse complement of a DNA sequence. In DNA sequences, 'A' and 'T'
   * are complements of each other, as are 'C' and 'G'. The reverse complement is formed by
   * reversing the symbols of a sequence, then taking the complement of each symbol (e.g., the
   * reverse complement of "GTCA" is "TGAC").
   *
   * @param dna a string representing a DNA sequence of arbitrary length, containing only the
   * characters A, C, G and T
   *
   * @return a String representation of the reverse complement of the given sequence
   */
   public static String reverseComplement(String dna) {
       return new String(reverseComplement(dna.toCharArray()));
   }

   public static void main(String[] args) {
       System.out.println("reverseComplement(\"GTCA\") converted to : "+reverseComplement("GTCA"));
       System.out.println("reverseComplement(\"TAAC\") converted to : "+reverseComplement("TAAC"));
      
   }
}