Doubt in Object creation

[suganyak]

Hi friends ...
I am new to java so pls clear my doubt

How many objects are created in the following piece of code?
Myclasses class1, class2, class3;
c1 = new Myclasses ();
c3 = new Myclasses ();

Thanks
Suganya

[surekhav]

Hi Suganya,

Only 2 objects are created,
class1 and class3.
The reference c2 is only declared and not initialized.
So only two objects are created

[avadhoot.dharmadhikari]

Whenever you define int a,b,c; so we call a,b,c as variable this is datatypes it's mangae some memory on heap but initially it's define in heap as default value.that like as in java whenever you not use new keywords objects are not created means not get memory.we can only define reference variable.
In your ex
Myclasses class1, class2, class3;
c1 = new Myclasses ();
c3 = new Myclasses ();

here you create three reference variable class1, class2, class3;
which refer to MyClasses and create only two objects i.e.
c1 = new Myclasses ();
c3 = new Myclasses ();
i hope you understand.

[sureshkumar.t]

hi Friends

Object creation has three phases 1.declaration 2.instantiation 3.intialization.

Myclasses class1, class2, class3; this is declaration here we are reffering Myclasses objects with class1,class2 ans class3.

c1 = new Myclasses ();
c3 = new Myclasses ();
The new instantiate the object means it allocates some memory to Myclasses Object.
After that Myclasses constructer intaia;izes that object.

so, only two objects created there.

Thanks & regards,
SureshKumar

[kris_121]

Hi Suganya,

Myclasses class1, class2, class3;
When the above line of code is executed, the Java Virtual Machine(JVM) will create three reference variables class1, class2 and class3, but the objects are not created at this point i.e., the memory for the objects of type Myclasses is not allocated in JVM's memory.
c1 = new Myclasses ();
c3 = new Myclasses ();
When the above two lines are executed, two objects of type Myclasses are created in the JVM's memory.

Regards,
Kris

[rk_ramakrishnamca]

Hi Suganyak,
Fine, The code you are given as follows:
Myclasses class1, class2, class3;
c1 = new Myclasses ();
c3 = new Myclasses ();

I dont know you either may or maynot observing the one point here. What is that is, there is discrimination between the Reference variables and the objects. From the abow code, class1, class2, class3 are the reference variables, then if you want to create the objects such as c1 and c3
you must given the code as follows:
Myclasses c1 = new Myclasses ();
Myclasses c3 = new Myclasses (); otherwise the java compiler(javac) rises an error,suchas c1 and c3 are the undefined variables in Myclasses.

so, Finally there is no question of creating the objects in your given code.

Thank you,


If i commited any mistake. please correct me.