test.java

高质量Java程序设计 源代码

package net.betterjava.exception.nestedexception;

import java.io.IOException;

public class Test {

	private static void throwOldException() throws IOException {
		throw new IOException("a forced exception");
	}

	private static void throwNestedException() throws NestedException {
		try {
			throwOldException();
		} catch (IOException e) {
			throw new NestedException(e.getMessage());
		}
	}

	public static void main(String[] args) {
		try {
			throwNestedException();
		} catch (NestedException e) {
			e.printStackTrace(System.out);
		}
	}
}