Best way to check for null values in Java?

Question

Before calling a function of an object, I need to check if the object is null, to avoid throwing a NullPointerException.

What is the best way to go abou

Answer 1

The last and the best one. i.e LOGICAL AND

  if (foo != null && foo.bar()) {
    etc...
}

Because in logical &&

it is not necessary to know what the right hand side is, the result must be false

Prefer to read :Java logical operator short-circuiting