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Numeric Datatype개발입문/JAVA 2017. 9. 10. 13:29
DataTypebyte, short, int, long 그리고 Precision Java Datatype> https://www.hackerrank.com/challenges/java-datatypes?h_r=next-challenge&h_v=zen A byte is an 8-bit signed integer. - 2^7 ~ 2^7-1A short is a 16-bit signed integer. - 2^15 ~ 2^15-1An int is a 32-bit signed integer. - 2^31 ~ 2^31-1A long is a 64-bit signed integer. - 2^63 ~ 2^63-1 첫자리는 부호 + 다음자리부터 Bit 0 or 1이걸 가지고 한참을 헤매다니...