ex7.java

java编程思想第四版习题答案

// exceptions/Ex7.java
// TIJ4 Chapter Exceptions, Exercise 7, page 456
// Modify Exercise 3 so that the catch clause logs the result.
import java.util.logging.*;
import java.io.*;

public class Ex7 {
	private static int[] ia = new int[2];
	private static Logger logger = Logger.getLogger("Ex7 Exceptions");
	static void logException(Exception e) { // Exception e argument
		StringWriter trace = new StringWriter();
		e.printStackTrace(new PrintWriter(trace));
		logger.severe(trace.toString());
	}
	public static void main(String[] args) {
		try {
			ia[2] = 3;
		} catch(ArrayIndexOutOfBoundsException e) {
			System.err.println(
				"Caught ArrayIndexOutOfBoundsException");
			e.printStackTrace();
			// call logging method:
			logException(e);
		}
	}
}