Question

Can someone help me with the writing of this code please?

public static int promptInt(Scanner input, String prompt, int min, int max) {

return 0; //TODO replace

}

  

/**

   * Returns the index within arr of the first occurrence of the specified character.

   * If arr is null or 0 length then return -1. For all arrays, don't assume a length

   * but use the array .length attribute.

   * @param arr The array to look through.

   * @param ch The character to look for.

   * @return The index within the array of the first occurrence of the specified

   * character or -1 if the character is not found in the array.

   */

Answer 1

method declaration is different and explanation is different  

so I'm giving function definition as explained

package geeks;

public class FindSingleOccur {

   public static void main(String[] args) {
       char ar[]={'a','n','b','b','f'};
       int in=firstOccurence(ar,'k');
       System.out.println(in);

   }
   public static int firstOccurence(char ar[],char c){
       String str=new String(ar); //make string from array
       int index =str.indexOf(c); //this will return first occurrence of char if not present
       //it will return -1
       return index;
   }

}

output

-1