equals-operator

I keep getting the same issue over and over again where an object I want to reference is copied or where an object I want to copy is referenced. This happens when I use the = operator. For example, if I am sending the object to another form, ie: SomeForm myForm = new SomeForm(); SomeObject myObject = new SomeObject(); myForm.formObject = myObject; ...and then modify the object in the form, the original object does not get modified. It is as if the object was copied and not referenced. Yet, when I do this: SomeObject myObject = new SomeObject(); SomeObject anotherObject = new SomeObject();

This question already has an answer here: Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java? 6 answers The following code seemed really confusing to me since it provided two different outputs.The code was tested on jdk 1.7. public class NotEq { public static void main(String[] args) { ver1(); System.out.println(); ver2(); } public static void ver1() { Integer a = 128; Integer b = 128; if (a == b) { System.out.println("Equal Object"); } if (a != b) { System.out.println("Different objects"); } if (a.equals(b)) { System.out.println("Meaningfully equal."); } }