Displaying Information On The Screen

[abhishekphukan]

How can i write a program to display a number of series like the following:

56789
6789
789
89
9

public class displaying {
 
 
   public static void main(String args[]){
       int x,y,z;
       for(x=0;x<5;x++){
         for(y=5;y<10;y++){
             z=x+y;
             System.out.println(z);
         }
       }
   }
}

i have write the program but its not giving the desired output.Something is missing.Please can anyone tell what condition i required for the completion of the above problem.
Thank You....

[Frinavale]

Your program is supposed:

• Start with to take a bunch of characters (56789)
• Display all of the characters and then, on subsequent lines, continue to display the the characters after removing one from the right

In Java there are structures called Arrays that contain a group of things.

In your case you should have an array of characters that contains the values 56789. (You could also use an array of Numbers or Integer or anything else really)

So, after you populate your array, the array will look like this:

       --------------------- 
data:  | 5 | 6 | 7 | 8 | 9 |
       --------------------- 
index:  [0] [1] [2] [3] [4] 
 

Please note that the character "5" is in position/index 0 in the array.

With that in mind, this is how you would populate your array:

// creating an array variable to hold the information
char[] anArray;
 
// allocates memory for 5 characters
anArray = new char[5];
 
// initialize first element
anArray[0] = '5';
// initialize second element
anArray[1] = '6';
// and so forth
anArray[2] = '7';
anArray[3] = '8';
anArray[4] = '9';

You can accomplish the same thing in less lines of code by doing the following:

  char[] anArray = {'5','6','7','8','9'};
 

But it will result in the same thing as demonstrated above.

Now that you have an array, you can loop through the elements within it and display them on your screen.

public static void main(String[] args){
  char[] anArray = {'5','6','7','8','9'};
  for(int index=0; index<anArray.length; index++){
    System.out.print(anArray[index]);
  }
  System.out.println('');
}
 

Now, I will leave it up to you to try and figure out how to print the array by removing the right item. (Hint: you can manipulate the index of the array that you start at while printing)

If you have a problem with it, post back here and I'll help you through it.

Please take a look at the links I've posted because they have very useful information in them.

-Frinny