import java.io.*; | |
class Test { | |
abstract class Target { | |
abstract void call(String f) throws FileNotFoundException, IOException; | |
abstract void call(String[] f) throws FileNotFoundException, IOException; | |
} | |
void use(Target target) throws IOException { | |
try { | |
target.call(""); | |
} catch (FileNotFoundException e) { | |
System.out.println("file not found"); | |
} catch (IOException e) { | |
System.out.println("failed: " + e); | |
} | |
} | |
} |