Quote:

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i would like to know How to Print a square with asterisks in java with while loop only but with out for loop and with out any logic operations like: and or Or this code something like that if we enter 4 it should print
* * * *
* *
* *
* * * *
but it do some thing else like that

* **


*

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Code:

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Scanner input = new Scanner(System.in) ;

    int squareside ;
    System.out.print("Enter the side: ");
    squareside = input.nextInt();

    while ( squareside != -1 )
    {
        int xaxis = 0 ;
        while ( xaxis < squareside )
        {

            if( xaxis == 0 ) {
                System.out.print(" *") ;
            }
            else if( xaxis == squareside - 1){
                System.out.print(" *") ;
            }
            else
                System.out.print(" ") ;

            xaxis ++ ;

        }
        int yaxis = 0 ;

        while( yaxis < squareside )
        {
            if
            ( yaxis == 0 )
            {
                System.out.print(" *");
            }
            else if( yaxis == squareside - 1)

            {
                System.out.print(" *");

            }
            else

                System.out.print(" "); 
            yaxis ++;
            System.out.println();

        }

        System.out.print("Enter the side: ");
        squareside = input.nextInt();
    }

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Your algorithm is fundamentally flawed if you are intending to print out each line (X axis) in sequence (Y axis). Scanner objects also need some housekeeping done when finished with them.