Medication of ArrayDemo.java to include iterative menu

Activity 1-1
Modify ArrayDemo.java to include this iterative menu:

[1] Display contents of the array using for loop (by index, ascending)
[2] Display contents of the array using do loop (by index, ascending)
[3] Display contents of the array using do while loop (by index, ascending)
[4] Display contents of the array using value (by index, descending)
[5] Exit

Code :

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class ArrayDemo {
     public static void main(String[] args) {
 
          int[] anArray;              // declares an array of integers
 
          anArray = new int[10];      // allocates memory for 10 integers
 
          anArray[0] = 100; // initialize first element
          anArray[1] = 200; // initialize second element
          anArray[2] = 300; // etc.
          anArray[3] = 400;
          anArray[4] = 500;
          anArray[5] = 600;
          anArray[6] = 700;
          anArray[7] = 800;
          anArray[8] = 900;
          anArray[9] = 1000;
 
 
          System.out.println("Element at index 0: " + anArray[0]);
          System.out.println("Element at index 1: " + anArray[1]);
          System.out.println("Element at index 2: " + anArray[2]);
          System.out.println("Element at index 3: " + anArray[3]);
          System.out.println("Element at index 4: " + anArray[4]);
          System.out.println("Element at index 5: " + anArray[5]);
          System.out.println("Element at index 6: " + anArray[6]);
          System.out.println("Element at index 7: " + anArray[7]);
          System.out.println("Element at index 8: " + anArray[8]);
          System.out.println("Element at index 9: " + anArray[9]);
     }
}

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can someone help me or assist me please.....^:)^

Quote:

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Originally Posted by xyldon27

can someone help me or assist me please.....^:)^

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okay, just wait for my code.

Cheers,
Truffy

thanks.. i really need it.. because my heads hurts today because of the heat of the sun.. but still im trying to figure it out..

Quote:

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Originally Posted by xyldon27

thanks.. i really need it.. because my heads hurts today because of the heat of the sun.. but still im trying to figure it out..

---

Hi xyldon27,
Here's the code for you.

Hope it helps.

Code :

---

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 
import java.util.Arrays;
import java.util.Comparator;
import java.util.Scanner;
 
/**
 *
 * @authorTruffy
 */
class ArrayDemo {
        public void forsortIntArray() {
 
        int[] arrayToSort = new int[] {100, 200,300, 400, 500, 600, 900, 800, 700};
 
        Arrays.sort(arrayToSort);
 
        for (int i = 0; i < arrayToSort.length; i++)
            System.out.println(arrayToSort[i]);
    }
         public void doLoopsortIntArray() {
 
        int[] arrayToSort = new int[] {100, 200,300, 400, 500, 600, 900, 800, 700};
 
        Arrays.sort(arrayToSort);
 
 
         int loopvar = 0; // Declare and initialize the loop counter
do {
System.out.println(arrayToSort[loopvar]); // Print the variable
loopvar = loopvar + 1; // Increment the loop counter
} while (loopvar < 9); // Test and loop 
 
    }
 
         public void whileLoopsortIntArray() {
 
        int[] arrayToSort = new int[] {100, 200,300, 400, 500, 600, 900, 800, 700};
 
        Arrays.sort(arrayToSort);
 
 
         int loopvar = 0; // Declare and initialize the loop counter
 
 
while (loopvar < 9){
System.out.println(arrayToSort[loopvar]); 
loopvar = loopvar + 1;     
}
 
    }
 
           public void sortIntArray() {
 
        int[] intArray = new int[] {100, 200,300, 400, 500, 600, 900, 800, 700};
 
//        Arrays.sort(intArray);
 
              // translate int array over to an Integer Array     
         Integer[] integerArray = new Integer[intArray.length];  
     for (int i = 0; i < intArray.length; i++)  
     {  
      integerArray[i] = new Integer(intArray[i]);  
     }  
    // sort with an anonymous Comparator object  
     Arrays.sort(integerArray, new Comparator<Integer>()  
     {  
       public int compare(Integer o1, Integer o2)  
       {  
         return o2.intValue() - o1.intValue();  
       }  
     });  
     System.out.println(Arrays.toString(integerArray));  
    }
 
 
 
      public static void main(String[] args) {
          ArrayDemo arr = new ArrayDemo();
          System.out.println("[1] Display contents of the array using for loop (by index, ascending)");
          System.out.println("[2] Display contents of the array using do loop (by index, ascending)");
          System.out.println("[3] Display contents of the array using while loop (by index, ascending)");
          System.out.println("[4] Display contents of the array using value (by index, descending)");
          System.out.println("[5] Exit\n");
 
 
          Scanner sc = new Scanner(System.in);
          while(sc.hasNext()){
 
        String input = sc.next();
 
        if(input.equals("5")){
            System.out.println("Bye! Bye!");
            System.exit(0);
        }else if(input.equals("1")){
            arr.forsortIntArray();
 
        }else if(input.equals("2")){
            arr.doLoopsortIntArray();
        }else if(input.equals("3")){
            arr.whileLoopsortIntArray();
        }else if(input.equals("4")){
            arr.sortIntArray();
 
        }
        System.out.println("Enter cmd: ");
        }
 
 
    }
 
 
 
}

---

Quote:

---

output
compile-single:
run-single:
[1] Display contents of the array using for loop (by index, ascending)
[2] Display contents of the array using do loop (by index, ascending)
[3] Display contents of the array using while loop (by index, ascending)
[4] Display contents of the array using value (by index, descending)
[5] Exit

1
100
200
300
400
500
600
700
800
900
Enter cmd:
2
100
200
300
400
500
600
700
800
900
Enter cmd:
3
100
200
300
400
500
600
700
800
900
Enter cmd:
4
[900, 800, 700, 600, 500, 400, 300, 200, 100]
Enter cmd:
5
Bye! Bye!

---

Cheers,
Truffy. 8->

I'LL TEST IT RIGHT AWAY ^_^ THANK YOU SO MUCH

Quote:

---

Originally Posted by xyldon27

I'LL TEST IT RIGHT AWAY ^_^ THANK YOU SO MUCH

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if you are satisfied and that is correct, please mark as solved.

Cheers,
Truffy. :P

it work thank u so much.. cheers for Truffy

Quote:

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Originally Posted by xyldon27

it work thank u so much.. cheers for Truffy

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please mark it solved then. :)