Java常量

public class TestFinal {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        final int PRICE = 10;
        System.out.println(PRICE);
        //不能二次赋值
        //PRICE = 12;
    }

}

public class TestFinal {
    //类常量,static方法只能访问static变量 
    private static final int PRICE = 10;

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int weight = 5;
        System.out.println("the total cost is : "+ PRICE*weight);
        //不能二次赋值
        //PRICE = 12;
    }

}