Ex..

if (age >= 0) 
   if (age < 120)
      print age is valid

to

if (age >= 0) && (age < 120)
  print age is valid
=========================

if (age < 0) || (age >= 120)
  print age is valid

to

if (age < 0)

#include <iostream>
#include <ctime>
#include <cstdlib>
#include <string>

#include <iostream>
#include <ctime>
#include <cstdlib>
#include <string>

using namespace std;

  //const int SUITS = 4;

int numInRank[13];

bool flag = true;   //flag to determine if Ace is high or low

cin.get(rankCh);
    switch (toupper(rankCh))
     {         
      case '-1':            exit(0);
      case 'A':

 public void straight()
   {
      int locations[] = new int[ 5 ], z = 0;

      for ( int y = 0; y < numbers.length; y++ )

         if ( numbers[ y ] == 1 )
            locations[ z++ ] = y;