What does new Object[]{} in Java means?

Question

In Java you are able to do the following:

new Object[] { /* parameters separated by comma */};

Indeed, this is used in the prepared statements of the Spring framework. Eg:

getJdbcTemplate().queryForList(
   "DELETE FROM foo WHERE id = ?", //the "?" mark will be substituted by "3"
   new Object[] { 3 }, //What kind of magic is this?
   String.class //Irrelevant in this example
);

• How is this called?
• What is going on there?
• How could you access that parameters?

Answer 1

Object[] objs = new Object[]{3,4};

is the same as:

Object[] objs = new Object[2];
objs[0] = 3;
objs[1] = 4;

So you access it as objs[0];