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Thread: Just a beginner asking for help with 1 line of code

  1. January 13th, 2021, 03:42 PM #1
    SquishyBum
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    Default Just a beginner asking for help with 1 line of code

    Hello everyone. I started learning Java just now and right now writing simple codes. Made a program, where it displays all the numbers from the range 1 - 100 which are divisible by 5
    // beginning from 100 (in reverse order).

    I just have a question about this line of code:

    if (i % 5 == 0) {
    System.out.print(i + " --NEXT-- ,");

    It prints 100 NEXT, 95 NEXT and so on, but what does == (equality operator) and 0 in the end really mean. Can someone explain it to me really simple? Also, when does 0 turn to 1 after ==? Does 0 turn to 1 if for example i is 101 and it goes i % 5==1 because 101 divided by 5 is 20 and 1 is leftover?

    Kind Regards,

    Squish
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  2. January 13th, 2021, 03:50 PM #2
    Norm
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    Default Re: Just a beginner asking for help with 1 line of code

    (i % 5) == 0
    I added ()s to make it easier to read.
    The computer first does the % operation (which returns a int value) and then compares that int value to 0 which returns a true or false value that is used by the if statement to select what to do next.
    If you don't understand my answer, don't ignore it, ask a question.
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