Java static理解
public class TestStatic {static int i;static{System.out.println("Whether the first load...");}public TestStatic() {// TODO Auto-generated constructor stubSystem.out.println("non-arg...");i=4;}public TestStatic(int j){System.out.println("has-arg...");i=j;}public static void main(String args[]){TestStatic t1 = new TestStatic(10);System.out.println(t1.i);TestStatic t2 = new TestStatic();//t2.i=8;System.out.println(t1.i);System.out.println(t2.i);}}
输出结果:
Whether the first load...
has-arg...
10
non-arg...
4
4
?