1、创建FinalTest类，里面有一个final常量x
class FinalTest{
public static final int x = 3;
static {
System.out.println("FinalTest static block");
}
}
public class MyTest8 {
public static void main(String[] args) {
System.out.println(FinalTest.x);
}
}
然后在Main方法里打印fianl常量。打印结果
3
2、然后去掉final，
class FinalTest{
public static int x = 3;
static {
System.out.println("FinalTest static block");
}
}
public class MyTest8 {
public static void main(String[] args) {
System.out.println(FinalTest.x);
}
}
打印结果为：
FinalTest static block 3
3、将fianl常量改为随机生成
class FinalTest{
public static int x = new Random().nextInt(3);
static {
System.out.println("FinalTest static block");
}
}
public class MyTest8 {
public static void main(String[] args) {
System.out.println(FinalTest.x);
}
}
打印结果
FinalTest static block 1
原文：https://www.cnblogs.com/linlf03/p/10994604.html