Tag Archives: wrapper

Know some hashcodes


Some of the hashcodes of interest’s are in java wrappers

Boolean – hashCode() – 1231 for ‘true’ and ‘1237’ for ‘false’
Integer – hashCode() – will return the primitive int value
Byte – hashCode() – primitive int value of the byte is returned as hashcode
Charater- hashCode() – primitive int value of the byte is returned as hashcode
Long – value of the following expression

(int)(this.longValue()^(this.longValue()>>>32))

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Some interesting hashcode values


Some of the hashcodes of interest’s are in java wrappers

BooleanhashCode()1231 for ‘true’ and ‘1237’ for ‘false’
Integer hashCode() – will return the primitive int value
Byte hashCode() – primitive int value of the byte is returned as hashcode
CharacterhashCode() – primitive int value of the byte is returned as hashcode
Long hashCode() – value of the following expression

(int)(this.longValue()^(this.longValue()>>>32))

to know more about this please check hashcode-contract-with-equals