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Thread: looping, for,while,do-while.

  1. #1
    Java kindergarten chronoz13's Avatar
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    Default looping, for,while,do-while.

    can anyone please do this problem

    1 2 3 4
    2 4 6 8
    3 6 9 12
    4 8 12 16

    in for loop, while loop, and do-while,,

    ill study how this works in these three different structures of loop

    tnx a lot!!


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    mmm.. coffee JavaPF's Avatar
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    Default Re: looping, for,while,do-while.

    Hello chronoz13.

    I'm a bit confused... Can you please give me a little more detail?
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    Java kindergarten chronoz13's Avatar
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    Default Re: looping, for,while,do-while.

    oh sori sir..

    i've just red it on my school mate a while ago.

    it says

    do that program by using a loop(i dont remember all the details)

    but i think that

    the first number (number 1) will be initialized then it will increment up to (4). (THE FIRST ROW)

    1 2 3 4

    but im having some trouble formulating the idea on how to loop the next numbers ,(2nd 3rd and 4th row)

    2 4 6 8
    3 6 9 12
    4 8 12 16

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    mmm.. coffee JavaPF's Avatar
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    Default Re: looping, for,while,do-while.

    Are all these loops ment to be together as one or are you look for an example answer for each loop?
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    Super Moderator Json's Avatar
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    Default Re: looping, for,while,do-while.

        for(int i = 1; i <= 4; ++i) {
           System.out.print(i + " ");
        }
     
        System.out.println("");
     
        for(int i = 2; i <= 8; i += 2) {
           System.out.print(i + " ");
        }
     
        System.out.println("");
     
        for(int i = 3; i <= 12; i += 3) {
           System.out.print(i + " ");
        }
     
        System.out.println("");
     
        for(int i = 4; i <= 16; i += 4) {
           System.out.print(i + " ");
        }

    That should print what you want I guess.

    1 2 3 4
    2 4 6 8
    3 6 9 12
    4 8 12 16

    // Json

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