Java进阶-getMessage和printStackTrace 常用方法

getMessage()：取得异常描述信息
printStackTrace()：取得异常的堆栈信息（比较适合于程序调试阶段）

package test0222;

import java.io.FileInputStream;
import java.io.FileNotFoundException;

public class ExceptionTest05 {

	public static void main(String[] args) {
		try {

			FileInputStream fils = new FileInputStream("a");

		} catch (FileNotFoundException e) {

			// e.printStackTrace();
			/*
			 * java.io.FileNotFoundException: a (系统找不到指定的文件。) at
			 * java.io.FileInputStream.open0(Native Method) at
			 * java.io.FileInputStream.open(FileInputStream.java:195) at
			 * java.io.FileInputStream.<init>(FileInputStream.java:138) at
			 * java.io.FileInputStream.<init>(FileInputStream.java:93) at
			 * test0222.ExceptionTest05.main(ExceptionTest05.java:11)
			 */

			String msg = e.getMessage();
			System.out.println(msg); // a (系统找不到指定的文件。)
		}

		System.out.println("AB"); // AB
	}
}