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Line 344:
Line 344: + + Line 353:
Line 355: + + + + + + + + + + + + + + + + + + + + + + + + + + + − File file = new File("test.txt"); + + + + + + + + − FileReader fr = new FileReader(file); + − + − + − System.out.println("File not found: " + file.toString());+ + + + −
→Exceptions
see: [https://github.com/rafahsolis/javaTutorial/blob/master/AnonymousClass.java AnonymousClass.java]
see: [https://github.com/rafahsolis/javaTutorial/blob/master/AnonymousClass.java AnonymousClass.java]
== Exceptions ==
== Exceptions ==
[http://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html Class Exception]
=== trows ===
<source lang="java">
<source lang="java">
package tutorialJava;
package tutorialJava;
public class HandlingExceptions {
public class HandlingExceptions {
public static void main(String[] args) trows FileNotFoundException {
File file = new File("test.txt");
FileReader fr = new FileReader(file);
}
}</source>
=== try/catch ===
<source lang="java">
import java.io.IOException;
import java.text.ParseException;
public class MultipleExceptions {
public static void main(String[] args) {
public static void main(String[] args) {
Test test = new Test();
//Option 1
try {
test.run();
} catch (IOException e) {
// e.printStackTrace();
System.out.println("File not found.");
} catch (ParseException e) {
// e.printStackTrace();
System.out.println("Parse error.");
}
//Option 2
try {
test.run();
} catch (IOException | ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//Option 3
try {
try {
test.run();
} catch (FileNotFoundException e) {
} catch (Exception e) {
//e.printStackTrace();
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//Option 4
// add throws to main declaration...
}
}
}</source>
}</source>