classPerson{staticint i;}classTest{publicstaticvoid main(String args []){Person p1 =newPerson();Person p2 =newPerson();Person.i =10;System.out.println("p1的i的值为"+ p1.i);System.out.println("p2的i的值为"+ p2.i); p1.i =20;System.out.println("p1的i的值为"+ p1.i);System.out.println("p2的i的值为"+ p2.i);}}classPerson{staticString name;staticvoid talk(){System.out.println("my name is "+ name);}}classTest{publicstaticvoid main(String args []){Person.name ="ZhangSan";Person.talk();}}classPerson{static{System.out.println("静态代码块");}staticString name;staticvoid talk(){System.out.println("my name is "+ name);}}classTest{publicstaticvoid main(String args []){Person.name ="ZhangSan";Person.talk();}}原文：http://www.cnblogs.com/arroneve/p/5815430.html