java - Extract ones and tens from an integer value -


this question has answer here:

i think math little bit tricky in java. lets have integer value of 203 , want extract 0 , 3. me, easiest way have intat(1) , intat(2) or able extract left(203,1) retrieve "2" , subract with: 203 - (2 * 100).

anyway think got solution, see codeblock below:

    string th = integer.tostring(203);     int th2 = integer.valueof(th);     string th3 = th.charat(1) + "" +  th.charat(2);     int thrown_card_two_post = integer.valueof(th3);     system.out.println(thrown_card_two_post);

is there more efficient way accomplish this?

i think best way smaller large.

  1. so first, take modulus 10 last digit. if don't know, modulus 10is remainder after division 10 , can expressed 203 % 10.

  2. after have last digit, subtract total , take modulus 100 second digit.

  3. repeat digits.

if don't need digits, specific one, can first divide skip couple steps.


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