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1、Java中静态变量的适用场景Java类中的静态变量在程序运行期间，其内存空间对所有该类的对象实例而言是共享的，有些时候可以认为是全局变量。因此在某些时候为了节省系统内存开销、共享资源，可以将类中的一些变量声明为静态变量，通过下面的例子，你可以发现合理应用静态变量带来的好处：Java代码public class WeekAstatic class Data private int week;private String name;Data(int i, String s) week= i;name = s;Data weeks = new Data(1, Monday), new Data(2,
2、 Tuesay), new Data(3, Wednesday), new Data(4, Thursday), new Data(5, Friday), new Data(6, Saturday), new Data(7, Sunday);public static void main(String args) final int N = 10000;WeekA weekinstance;for (int i = 1; i = N; i+)weekinstance = new WeekA ();public class WeekAstatic class Data private int w
3、eek;private String name;Data(int i, String s) week= i;name = s;Data weeks = new Data(1, Monday), new Data(2, Tuesay), new Data(3, Wednesday), new Data(4, Thursday), new Data(5, Friday), new Data(6, Saturday), new Data(7, Sunday);public static void main(String args) final int N = 10000;WeekA weekinstance;for (int i = 1; i = N; i+)weekinstance = new WeekA ();
