java - Variables runtime error doubts solve it Runtim

Question

I have started learning java and there is this one line which I am not getting clearly that -

Variables are interpreted at runtime whereas values/constants at compile time ??

Can anyone explain this with suitable code..

Answer 1

编译时常量：原始类型或字符串，声明为 final，在其声明中初始化，并带有常量表达式。例子：

public final int maximumLoginAttempts = 5;

运行时常数：程序运行时值不能改变。但是，每次我们运行应用程序时，它都可以有不同的值： 示例：

public static void main(String[] args) {
    Console console = System.console();
    final String input = console.readLine();
    console.writer().println(input);
}