Question

Java program

problem 1

• Come up with an idea for parallel arrays
• Create the arrays to hold 5 items in each
• In the main(), load the arrays with data
• Then output the entire contents of the arrays
• Create a method called find1() and pass the 2 arrays to that method.

problem 2

• In the find1() method, ask the user to enter a value to search for
• Write logic to search the first array and then output the related data from the second array.
• You can NOT use the .binarySearch() method. Create your own search logic.
• The find1() method should return a TRUE if a match was found and FALSE if no match was found
  • Be sure to comment your code

Answer 1

Java code:

import java.util.*;
public class Main
{
   public static void main(String[] args) {
       Scanner s = new Scanner(System.in);
       String countries[] = {"India","US","UK","Srilanka","Bangladesh"};
       String capitals[] = {"Delhi","Washington","London","Colombo","Dhaka"};
       System.out.println("Printing Data in parallel arrays:");
       for(int i=0;i<5;i++)
       {
       System.out.println("Capital of "+countries[i]+" is "+capitals[i]);
       }
       System.out.println("-------------------------------------");
       find1(countries,capitals);
   }
   static boolean find1(String countries[],String capitals[])
{
String key;
Scanner sc = new Scanner(System.in);
System.out.print("Enter a Capital for search:");
key = sc.next();
for(int i=0;i<countries.length;i++)
{
if(key.equals(countries[i]))
{
System.out.println("key matched and its corresponding Capital is "+capitals[i]);
return true;
}

}
return false;
  
}
  
}
Execution Screenshots: