package Lab$1.$comp$2402$w$24$l$1$;

$//$ From within the Lab directory $($or wherever you put the comp$2402$w$24$l$1$ directory$)$:

$//$ javac comp$2402$w$24$l$1/$RNAStrand$.$java

$//$ java comp$2402$w$24$l$1/$RNAStrand

$//$ You will submit this file to the autograder.

$//$ It will not pass many of the tests, if any.

$//$ Your task is to modify the class to pass the tests.

$//$ Do not add any imports.

$//($You shouldn't need any, and you'll fail the autograder if you do$.)$

public class RNAStrand extends NAStrand $\{$

$/**$

$*$ Constructor

$*/$

public RNAStrand$()\{$

$//$TODO$($Student$)$: Replace with your code

super$($null$)$;

$\}$

$/**$

$*$ Returns whether or not the base pair $($x$,$y$)$ is valid.

$*$ Valid pairs are $\text{'}$A$\text{'}$ and $\text{'}$U$\text{'},$ and $\text{'}$C$\text{'}$ and $\text{'}$G$\text{'}.$

$*$

$*$ @param x

$*$ @param y

$*/$

@Override

public boolean isPair$($char x$,$ char y$)\{$

$//$ TODO$($Student$)$: Replace with your code.

return false;

$\}$

$//$ These are a few examples of how to use main to run local tests

$//$ You should test more extensively than this.

public static void main$($String$[]$ args$)\{$

RNAStrand r $=$ new RNAStrand$()$;

System.out.println$($r$)$;

System.out.println$($r$.$isPair$(\text{'}$A$\text{'},\text{'}$U$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$U$\text{'},\text{'}$A$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$C$\text{'},\text{'}$G$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$G$\text{'},\text{'}$C$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$A$\text{'},\text{'}$C$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$C$\text{'},\text{'}$A$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$A$\text{'},\text{'}$G$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$G$\text{'},\text{'}$A$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$U$\text{'},\text{'}$C$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$C$\text{'},\text{'}$U$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$U$\text{'},\text{'}$G$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$G$\text{'},\text{'}$U$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$A$\text{'},\text{'}$A$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$C$\text{'},\text{'}$C$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$G$\text{'},\text{'}$G$\text{'}))$;

System.out.println$($r$.$isPair$(\text{'}$U$\text{'},\text{'}$U$\text{'}))$;

$\}$

$\}$