Java Tutorials

Creating Objects

• Objects are created using the new construct:

      Body sun = new Body();
   
      Body earth;
      earth = new Body();
  

• This example declare two references (sun, earth) that can refer to objects of type Body.
• Using new is the most common way to create objects.
• Java runtime (a) allocates enough space to store the fields of the object, (b) initializes the object, and (c) returns a reference to the new object.
• If the system can't find enough free space, it runs the garbage collector.
• If there is not enough free space available, new will throw an OutOfMemoryError exception.