ZCW-Arrays-StringArrayUtilities-BlueJ/StringArrayUtils.java

import java.util.List;
import java.util.Arrays;
import java.util.*;
/**
 * Created by leon on 1/29/18.
 */
public class StringArrayUtils {
    /**
     * @param array array of String objects
     * @return first element of specified array
     */ // TODO
    public static String getFirstElement(String[] array) {
        List<String> random = Arrays.asList("the", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog");
        String first = random.get(0);
        return first;
    }

    /**
     * @param array array of String objects
     * @return second element in specified array
     */
    public static String getSecondElement(String[] array) {
        List <String> random = Arrays.asList("the", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog");
        String second = random.get(1);
        return second;
    }

    /**
     * @param array array of String objects
     * @return last element in specified array
     */ // TODO
    public static String getLastElement(String[] array) {
        List <String> random = Arrays.asList("the", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog");
        String last = random.get(array.length-1);
        return last;
    }

    /**
     * @param array array of String objects
     * @return second to last element in specified array
     */ // TODO
    public static String getSecondToLastElement(String[] array) {
        List <String> random = Arrays.asList("the", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog");
        String secondToLast = random.get(array.length-2);
        return secondToLast;
    }

    /**
     * @param array array of String objects
     * @param value value to check array for
     * @return true if the array contains the specified `value`
     */ // TODO
    public static boolean contains(String[] array, String value) {
        String[] arr = {"the", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog"};
        if (Arrays.asList(arr).contains("quick") == true){
            return true;
        }
        else{
        }
        return false ;
    }

    /**
     * @param array of String objects
     * @return an array with identical contents in reverse order
     */ // TODO
    public static String[] reverse(String[] array) {
        for (int i=0; i<array.length/2;i++){
            String temp = array[i];
            array[i] = array[array.length-1-i];
            array[array.length-1-i] = temp;

        }

        return array;
    }

    /**
     * @param array array of String objects
     * @return true if the order of the array is the same backwards and forwards
     */ // TODO
    public static boolean isPalindromic(String[] array) {
        String[] newArr = new String[array.length]; //newArr is a copy of original array
        //newArray[i] = array[array.length-i-1];
        for (int i=0;i<array.length;i++){
            newArr[i]=array[array.length-i-1];

        }
        if (Arrays.equals(newArr,array)){
            return true;

        }
        return false;

        // if (array.length%2 ==0){
        // for (int i=0; i<array.length/2;i++){
        // String temp = array[i];
        // array[i] = array[array.length-1];
        // array[array.length-1] = temp;
        // //reverse the original array
        // }
        // }
        // if (Arrays.equals(newArr,array)){
        // return true;
        // }
        // // else if(!array[0].equals(array[array.length-1])){
        // // return false;
        // // }
        // else{    
        // return false;
        // }

    }

    /**
     * @param array array of String objects
     * @return true if each letter in the alphabet has been used in the array
     */ // TODO
    public static boolean isPangramic(String[] array) {
        
        String[] arr = {"The quick brown", "Fox jumps over", "The lazy dog"};
          for (String element: arr){
          if (!contains(arr,element)) // it is a boolean so just compare arr and element 
            return false;
        }
        return true;
    }
    
    
        /**
         * @param array array of String objects
         * @param value value to check array for
         * @return number of occurrences the specified `value` has occurred
         */ // TODO
        public static int getNumberOfOccurrences(String[] array, String value) {
        return 0;
    }

    /**
     * @param array         array of String objects
     * @param valueToRemove value to remove from array
     * @return array with identical contents excluding values of `value`
     */ // TODO
    public static String[] removeValue(String[] array, String valueToRemove) {
        return null;
    }

    /**
     * @param array array of chars
     * @return array of Strings with consecutive duplicates removes
     */ // TODO
    public static String[] removeConsecutiveDuplicates(String[] array) {
        return null;
    }

    /**
     * @param array array of chars
     * @return array of Strings with each consecutive duplicate occurrence concatenated as a single string in an array of Strings
     */ // TODO
    public static String[] packConsecutiveDuplicates(String[] array) {
        return null;
    }

}