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java Programming Glossary: equalsHow to sort a Map<Key, Value> on the values in Java? http://stackoverflow.com/questions/109383/how-to-sort-a-mapkey-value-on-the-values-in-java comparator imposes orderings that are inconsistent with equals. public int compare String a String b if base.get a base.get..
whats the difference between “.equals and ==” http://stackoverflow.com/questions/1643067/whats-the-difference-between-equals-and the difference between &ldquo .equals and &rdquo I switched lecturers today and he stated using a.. using a weird code to me. He said its better to use .equals and when i asked why he answered because it is so much for that... because it is so much for that. so here's an example if o1.equals o2 System.out.println Both integer objects are the same instead..
Places where JavaBeans are used? http://stackoverflow.com/questions/1727603/places-where-javabeans-are-used Important java.lang.Object overrides. public boolean equals Object other return other instanceof User id null id.equals.. Object other return other instanceof User id null id.equals User other .id other this public int hashCode return id null..
http://stackoverflow.com/questions/2707322/what-is-null-in-java this special property from java.lang.Object public boolean equals Object obj For any non null reference value x x.equals null.. equals Object obj For any non null reference value x x.equals null should return false . It is also the default value for..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java equals and hashCode in Java What issues pitfalls must be considered.. What issues pitfalls must be considered when overriding equals and hashCode java override equals hashcode share improve.. when overriding equals and hashCode java override equals hashcode share improve this question The theory for the language..
Why does Java's hashCode() in String use 31 as a multiplier? http://stackoverflow.com/questions/299304/why-does-javas-hashcode-in-string-use-31-as-a-multiplier
http://stackoverflow.com/questions/5003142/jsp-using-mvc-and-jdbc BigDecimal price Add generate getters setters c'tors equals hashcode boilerplate. A DAO class which does all the nasty JDBC..
What are the reasons why Map.get(Object key) is not (fully) generic http://stackoverflow.com/questions/857420/what-are-the-reasons-why-map-getobject-key-is-not-fully-generic requires that they be equal. This follows from how the equals method takes in an Object as parameter not just the same type.. Although it may be commonly true that many classes have equals defined so that its objects can only be equal to objects of.. is not the case. For example the specification for List.equals says that two List objects are equal if they are both Lists..
Difference Between Equals and == http://stackoverflow.com/questions/971954/difference-between-equals-and still return true . In both languages a.Equals b or a.equals b will call the virtual Equals equals method declared by Object.. a.Equals b or a.equals b will call the virtual Equals equals method declared by Object unless a more specific overload has..
Java comparison with == of two strings is false? http://stackoverflow.com/questions/995918/java-comparison-with-of-two-strings-is-false I'm confused so could anybody tell me why java string equals share improve this question The operator compares the object.. String s. To compare the values of String s use the String.equals method 231 .equals parts 0 This is true with any other object.. the values of String s use the String.equals method 231 .equals parts 0 This is true with any other object in Java when comparing..
Why can't I retrieve an item from a HashSet without enumeration? http://stackoverflow.com/questions/1494812/why-cant-i-retrieve-an-item-from-a-hashset-without-enumeration int HashCode return A.hashCode B.hashCode public bool Equals X obj return obj.A A obj.B B hashset.insert new X 1 2 extra1..
A tool to add and complete PHP source code documentation http://stackoverflow.com/questions/1936376/a-tool-to-add-and-complete-php-source-code-documentation correctly expected 4 spaces but found 1 47 WARNING Equals sign not aligned with surrounding assignments 51 ERROR Missing..
Object equality in context of hibernate / webapp http://stackoverflow.com/questions/2719877/object-equality-in-context-of-hibernate-webapp Set and displayed in a Wicket RefreshingView with a ReuseIfEquals strategy . I could either use the surrogate id or use all fields.. country. I don't see any problem with that. Just in case Equals And HashCode is another interesting reading. share improve..
Right way to implement equals contract http://stackoverflow.com/questions/3181339/right-way-to-implement-equals-contract peek the Source Alt Shift S menu option. See also JBoss Equals and HashCode in view of persistence Hibernate Persistent Classes..
http://stackoverflow.com/questions/3950439/equals-method-for-objects method for objects I'm trying to write an equals method for..
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 n but so is ArrayList.Contains if you could implement the Equals method. If you're not doing this in loops or inner loops this..
http://stackoverflow.com/questions/5712100/interview-java-equals Java Equals I was asked this question in interview. Which of the following..
How to find a button source in AWT (calculator homework) http://stackoverflow.com/questions/7441625/how-to-find-a-button-source-in-awt-calculator-homework button.getText if text.endsWith s s.equals text.equals Equals text.equals Enter return button return null START Because..
Using auto generated id of hibenate entity object in the equals and hashcode methods http://stackoverflow.com/questions/7579404/using-auto-generated-id-of-hibenate-entity-object-in-the-equals-and-hashcode-met java share improve this question You should read Equals and HashCode on the Hibernate Community Wiki. The main reason..
Difference Between Equals and == http://stackoverflow.com/questions/971954/difference-between-equals-and Between Equals and What is the difference between a b and a.Equals b c# java.. Equals and What is the difference between a b and a.Equals b c# java share improve this question Assuming the types.. and it would still return true . In both languages a.Equals b or a.equals b will call the virtual Equals equals method declared..
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