The purpose of a hash function ist to retrieve a unique value for a given sequence (of bytes, characters, …). Therefore you need the length of the sequence, here with ‘strlen’. Without bit shift operator (<<) you would get the same result for the sequence ‘abc’ and ‘cba’. The xor operator (^) ‘scrambles”https://stackoverflow.com/”hashes’ the current … Read more
Java class has default hashCode and equals method method implemented through super class. If u want to over ride them u can by following: class MyOb { private String name; private Integer quality; private final int MAXIMUM = 23; @Override public int hashCode() { final int prime = 31; int result = 1; result = … Read more
In a nutshell the difference is simple: the default implementation of equals() and hashCode() for java.lang.Object will never consider two objects as equal unless they are the same object (i.e. it’s “object identity”, i.e. x == y). the default implementation of equals() and hashCode() for records will consider all components (or fields) and compare them … Read more
Looks like Base64 to me. Any time I see encoding ending with ‘=’ or ‘==’ it is my first guess. I can see ‘sales’ and ‘product id’ after decoding your first example though it isn’t completely readable. May be double encoded or have other non-printable characters as field delimiters. Hopefully this gets you heading in … Read more