Question

You have an excel table with two columns named "personname" and "age". what happens if you use the activity insert column with the column name property set to "age"

Answer 1

If you want to insert a column named "age"
then select a column and click on "insert " from
the home tab.
then, a new column will be inserted before the
selected column.
If you select the property as "age" then you
can enter only the "numerals"

Answer 2

If you use the activity insert column with the column name property set to "age" then an exception is thrown.

An exception is an effect, which happens during the execution of a program, that interrupts the usual flow of the program's instructions.

Exceptions don't happen, they are thrown. Java launches an exception in acknowledgment to an unprecedented situation. You can also launch your own exceptions, or grab an exception to smoothly handle errors. When an exception is thrown, an occurrence of a Throwable class is generated.