java Programming Glossary: hashcodes

Testing string equality using hashCode()

http://stackoverflow.com/questions/1465621/testing-string-equality-using-hashcode

string hashcode share improve this question because hashCodes of two objects must be equal if the objects are equal however..

Hashcode and equals

http://stackoverflow.com/questions/1990734/hashcode-and-equals

2 objects are equal that is equals returns true then their hashCodes must return the same value. So in your code 2 objects are equal..

Is the address of an object fixed during its life cycle?

http://stackoverflow.com/questions/20249723/is-the-address-of-an-object-fixed-during-its-life-cycle

answer the code can never fetch the object from the map hashCodes are saved in the object header by JVM. So it is constant. While..

Explanation of HashMap#hash(int) method

http://stackoverflow.com/questions/2414117/explanation-of-hashmaphashint-method

length hash tables that otherwise encounter collisions for hashCodes that do not differ in lower bits. Note Null keys always map.. index 0. static int hash int h This function ensures that hashCodes that differ only by constant multiples at each bit position..

Most efficient way to see if an ArrayList contains an object in Java

http://stackoverflow.com/questions/558978/most-efficient-way-to-see-if-an-arraylist-contains-an-object-in-java

hashCode is best done by XOR'ing ^ operator the hashCodes of the same fields you are using for the equals implementation..

Understanding strange Java hash function

http://stackoverflow.com/questions/9335169/understanding-strange-java-hash-function