java catch multiple exceptions

1// syntax in java 7 Java catch multiple exceptions and rethrow exception
2try
3{
4   // code that throw exceptions 1 and 3
5}
6catch(SQLException | IOException e)
7{
8   logger.log(e);
9}
10catch(Exception e)
11{
12   logger.severe(e);
13}

1// Before java 7 - syntax Java catch multiple exceptions and rethrow exception
2try
3{
4   // code that throw exceptions 1 and 3
5}
6catch(SQLException e)
7{
8   logger.log(e);
9}
10catch(IOException e)
11{
12   logger.log(e);
13}
14catch(Exception e)
15{
16   logger.severe(e);
17}

1
2catch(IOException | SQLException ex){
3     logger.error(ex);
4     throw new MyException(ex.getMessage());
5}
6

1public class MyClass implements MyInterface {
2  public void find(int x) throws A_Exception, B_Exception{
3    ----
4    ----
5    ---
6  }
7}

1From Java 7, we can catch more than one exception with single catch block. 
2This type of handling reduces the code duplication.
3
4When we catch more than one exception in single catch block , 
5catch parameter is implicity final. We cannot assign any value to catch 
6parameter.
7
8Ex : catch(ArrayIndexOutOfBoundsException || ArithmeticException e){
920
10}
11
12In the example e is final we cannot assign any value or 
13modify e in catch statement