Where am I going wrong
I'm struggling to understand the output from the following simple piece of code.
Question: What is the output from the following code:
IdentifyMyParts a = new IdentifyMyParts();
IdentifyMyParts b = new IdentifyMyParts();
a.y = 5;
b.y = 6;
a.x = 1;
b.x = 2;
System.out.println("a.y = " + a.y);
System.out.println("b.y = " + b.y);
System.out.println("a.x = " + a.x);
System.out.println("b.x = " + b.x);
System.out.println("IdentifyMyParts.x = " + IdentifyMyParts.x);
Answer: Here is the output:
a.y = 5
b.y = 6
a.x = 2
b.x = 2
IdentifyMyParts.x = 2
I don't understand how a.x is output as 2.
--- Update ---
I understand now.
Read is from answer sheet
Because x is defined as a public static int in the class IdentifyMyParts, every reference to x will have the value that was last assigned because x is a static variable (and therefore a class variable) shared across all instances of the class. That is, there is only one x: when the value of x changes in any instance it affects the value of x for all instances of IdentifyMyParts.