java - Why does != 0 work but == 1 doesn't work when using bitwise &? - 


private void displaybinary() {     int value = 123;     (int = 128; > 0; = / 2) {         if ((value & i) != 0) system.out.print("1 ");         else             system.out.print("0 ");     } }

the method above writes out 123 in binary form, program outputs 0111101. however, if change !=0 ==1 in if statement, outputs 0000001. since binary 0s , 1s, why doesn't latter work?

you're not working base-2 number; you're still working base-10 int.

from this, numbers iteration, except last, fail if condition, since not equal 1.


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