That the system can instantiate and run as needed .

系统能够实例化并按需要运行的东西。

Instantiate a new procedural material instance from a prototype .

从原型实例一个新的程序材质实例。

Alternatively , you can instantiate it lazily , on first demand , as seen in listing 2 .

或者，可以惰性地初始化单实例，即只在第一次使用时才初始化，代码见清单2。

Create your own class and instantiate the controls .

创建你自己的类并将控件实例化。

For this to work , the system must be able to start an application process when any part of it is needed , and instantiate the java objects for that part .

为达到这个目的，系统必须在一个应用程序的一部分被需要时启动这个应用程序，并将那个部分的java对象实例化。