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Home/ Questions/Q 9266319
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Editorial Team
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Editorial Team
Asked: June 18, 20262026-06-18T14:17:25+00:00 2026-06-18T14:17:25+00:00

Can someone explain this java bitwise operator behavior?? System.out.println(010 | 4); // –> 12

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Can someone explain this java bitwise operator behavior??

System.out.println(010 | 4); //  --> 12
System.out.println(10 | 4);  //  --> 14

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  1. Editorial Team
    Editorial Team
    2026-06-18T14:17:27+00:00Added an answer on June 18, 2026 at 2:17 pm

    The first number is interpreted as octal. So 010 == 8.

    Starting from that, it is easy to see, that

    8d | 4d == 1000b | 0100b == 1100b == 12d
    

    The second number is interpreted to be decimal, which yields

    10d | 4d == 1010b | 0100b == 1110b == 14d
    

    (Where d indicates a decimal number and b indicates a binary one.)

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