在 Java 中，异常处理机制是通过 try, catch, finally, throw和 throws 这几个关键字来实现的。以下

是这些关键字的基本用途和它们之间的区别：

public class ExceptionHandlingExample {

    public static void main(String[] args) {
        try {
            processSomething();
        } catch (Exception e) {
            System.out.println("Caught an exception: " + e.getMessage());
        }
    }

    public static void processSomething() throws Exception {
        try {
            doSomethingThatMayFail();
        } catch (IOException e) {
            // 处理特定的异常
            System.out.println("Handling IOException: " + e.getMessage())