Posted on

Error returning a boolean from method

Hi guys,
I seem to have an issue with a boolean method returining a value. Here is the code excerpt - irrelevant code omitted:

public class StreamsTest {

    public static void main(String[] args) {
        String[] arr = new String[]{"a", "b", "c"};         
        //convert array to string with streams
        List<String> list = Arrays.stream(arr).collect(Collectors.toList());        
        isElementInIt(list);   
    }

    static boolean isElementInIt(List<String> list) {
        if(list.isEmpty()) {
            return false;
        }
        else {
            for (String string : list) {
                if (string.contains("a")) {
                    return true;
                }
                else {
                    return false;
                }
            }
        }       
    }
}

STS says that the isElementInIt method should return a boolean value, but it's already doing that whatever happens, so I'm not too sure why the error. Any idea?
thanks

Posted on

UPS tracking – make a field be a link to the ups tracking website

I have to take over a php project and I am totally new to php. I have this webpage that displays all packages sent to a customer and I want them to be able to click on the tracking number to do UPS website tracking.

The code:

<?php

$result = mysqli_query($conn, $sql);

if (!$result) {

    exit();
} else {

    if (mysqli_num_rows($result) > 0) {
        while ($row = mysqli_fetch_assoc($result)) {

            echo "<tr>";

            echo "<td><strong>";
            echo $row['trackingno'];
            echo "</td>";
            echo "<td>";
            echo $row['date_shipped'];
            echo "</td>";
            echo "<td>";
            echo $row['desc_reference2'];
            echo "</td>";
            echo "<td>";
            echo $row['status'];
            echo "</td>";
            echo "<td>";
            echo $row['date_delivered'];
            echo "</td>";

            echo "</tr>";
        }
    } else {
        echo "There are no Returns matching search!";
    }
}
?>

I need the "trackingno" to display the number but be able to clik on it and be a link to
http://wwwapps.ups.com/WebTracking/track?track=yes&trackNums=trackingno

Any suggestions will be highly apprecited.

Posted on

Sort according to frequency

    //With this method, I input a string and return an array that contains a sorted list of characters as per the frequency. Eg: If i input "apple", the out put should be p,a,l,e, How do I do this?

   public static ArrayList<Character> characterFreqDist(String statement)
{
  char[] Array = statement.toCharArray();
  int length = Array.length;
  int most_frequent_count = 0;
  char most_freq_character = '\0';
  char[] Final_Array = new char[length];

  ArrayList<Character> Sorted_Array = new ArrayList<Character>();

  for(int loop = 0 ; loop<length ; loop++)
  {
      most_freq_character = '\0';
      most_frequent_count = 0;
  for(int i = 0; i<length ; i++)
        { 
            char single_character = Array[i] ;

            int counter = 0;

            for(int j = 0; j<length ; j++)
            {
                if (single_character == Array[j])
                {
                    counter++;
                } 
            }
                if (counter > most_frequent_count)
                {
                    most_frequent_count = counter;
                    most_freq_character = single_character;
                }                   

      }

      Sorted_Array.add(most_freq_character);

                int index = 0;
                for (int k = 0; k < length; k++)
                {
                    if(Array[k] != most_freq_character)
                    Final_Array[index++] = Array[k];
                }

      Array =  Final_Array.clone();

      length = Array.length;

    }
    return Sorted_Array;
}