Java 8 pop quiz

[Juanitology]

Here's a little quiz for those of you who've looked into Java 8. Given the following, what result would you expect when you attempt to compile?

import java.sql.SQLException;public class Oppgave3 {	public static void main(String[] args) {				new Oppgave3().foo();	}	public void foo(){		doThrow(new SQLException());	}	<E extends Exception>	void doThrow (Exception e) throws E{		throw (E) e;	}}

a) Compiler error in foo: unhandled exception

b) ClassCastException in doThrow: SQLException cannot be cast to RuntimeException

c) SQLException gets thrown out of foo

[mikat]

Here's a little quiz for those of you who've looked into Java 8. Given the following, what result would you expect when you attempt to compile?

import java.sql.SQLException;public class Oppgave3 {	public static void main(String[] args) {				new Oppgave3().foo();	}	public void foo(){		doThrow(new SQLException());	}	<E extends Exception>	void doThrow (Exception e) throws E{		throw (E) e;	}}

a) Compiler error in foo: unhandled exception

B) ClassCastException in doThrow: SQLException cannot be cast to RuntimeException

c) SQLException gets thrown out of foo

idk about this stuff but i'm guessing a 

[AresKrieger]

Java bad

[Neil]

I'll take "Not in school, I'd throw this into an IDE and have it print me a stack trace" for $1000, Alex.

 

There's no reason to be able to manually figure out what snippets like this are doing. That's what the compiler is for.

[Bigst4v4]

Im going to say b 

[DevBlox]

I guess SqlException does not extend RuntimeException, so I bet it do A. I vaguely think that C is possible, but non runtime exceptions are checked, therefore have to be handled

[Gala]

Ah...Java...

[Nuluvius]

I'll take "Not in school, I'd throw this into an IDE and have it print me a stack trace" for $1000, Alex.

 

There's no reason to be able to manually figure out what snippets like this are doing. That's what the compiler is for.

 

[patch]

Exception in thread "main" java.sql.SQLExceptionat Oppgave3.foo(Oppgave3.java:14)at Oppgave3.main(Oppgave3.java:10)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)Process finished with exit code 1

Imma gonna go with C there

 

See ya next time, Space Cowboy