Java new keyword

Java new keyword

• It is used to create the object.
• It allocates the memory at runtime.
• It invokes the object constructor.
• We can also use the new keyword to create the array object.

• How to create a single object?
• Syntax:

class_name object_name = new class_name();

• Example:

MCA2 r1 = new MCA2();

• How to create multiple objects?
• Syntax:

class_name object_name1, object_name2, object_name3...;

• Example:

MCA2 r1,r2,r3;
r1 = new MCA2();
r2 = new MCA2();
r3 = new MCA2();

• How to create arrays of objects?
• Array which store values like string, integer, Boolean, etc. 
• Array of objects stores objects. 
• The array elements store the location of reference variables of the object

• Syntax:

class_name object_name[] = new class_name[size];

• Example:

MCA2 obj[] = new MCA2[2] ;

Full Example: