传引用
class stu
{
int a;
int b;
public stu() {
super();
this.a = 0;
this.b = 0;
}
}
......
void func(stu s)
{
s.a = 100;
}
public static void main(String argv[])throws Exception
{
tcpSrv t = new tcpSrv();
stu s= new stu();
System.out.println("init :a = "+s.a);
t.func(s);
System.out.println("init :a = "+s.a);
}
init :a = 0
init :a = 100