Question

Question 0:

package hw3;

public class Question0 {

        /*
         * TODO: Complete the method isSorted that
         * takes in as input an array of String 
         * and returns back a boolean value whether it 
         * is sorted in Lexicographical order or not. 
         * You can read up more on this here: 
         * https://en.wikipedia.org/wiki/Lexicographical_order
         */
        public static boolean isSorted(String[] array) 
        { 
                
                
                
                
                
                
                
                
                
                
        }


        
        /*
         * Do not write any code inside the main method and expect it to get marked. 
         * Any code that you write inside the main method will be ignored. However, 
         * you are free to edit the main function in any way you like for 
         * your own testing purposes. 
         */
        public static void main(String[] args)
        {
        
                String[] items={"a","b","c"};
                System.out.println(Question0.isSorted(items)); //must print true
                
                
                String[] items1={"c","b","a"};
                System.out.println(Question0.isSorted(items1)); //must print false
                
                String[] items2={"111","112","131","132"};
                System.out.println(Question0.isSorted(items2)); //must print true
                
                String[] items3={"a","aa","b","bb","c","ca"};
                System.out.println(Question0.isSorted(items3)); //must print true
                
                String[] items4={"z","zz","zzz","zzzz"};
                System.out.println(Question0.isSorted(items4)); //must print true
                
        }
}

Answer 1

package hw3;

public class Question0 {

    /*
     * TODO: Complete the method isSorted that
     * takes in as input an array of String
     * and returns back a boolean value whether it
     * is sorted in Lexicographical order or not.
     * You can read up more on this here:
     * https://en.wikipedia.org/wiki/Lexicographical_order
     */
    public static boolean isSorted(String[] array)
    {
        for (int i = 1; i < array.length; i++) {
            if (array[i-1].compareTo(array[i]) > 0) {
                return false;
            }
        }
        return true;
    }
    
    /*
     * Do not write any code inside the main method and expect it to get marked.
     * Any code that you write inside the main method will be ignored. However,
     * you are free to edit the main function in any way you like for
     * your own testing purposes.
     */
    public static void main(String[] args)
    {

        String[] items={"a","b","c"};
        System.out.println(Question0.isSorted(items)); //must print true


        String[] items1={"c","b","a"};
        System.out.println(Question0.isSorted(items1)); //must print false

        String[] items2={"111","112","131","132"};
        System.out.println(Question0.isSorted(items2)); //must print true

        String[] items3={"a","aa","b","bb","c","ca"};
        System.out.println(Question0.isSorted(items3)); //must print true

        String[] items4={"z","zz","zzz","zzzz"};
        System.out.println(Question0.isSorted(items4)); //must print true

    }
}