How do you use objects nonNull?

We can use lambda expression str -> str!= null inside stream filter() to filter out null values from a stream.

1.1 Java Stream Filter or using the static nonNull() method provided by the java. util. Objects class . This method returns true if the allocated reference is not null, otherwise false.

In Java 8, the only way to avoid the NullPointerException is by using if statements to check for null values .

The nonNull method is a static method of the Objects class in Java that checks whether the input object reference supplied to it is non-null or not. If the passed object is non-null, then the method returns true. If the passed object is null , then the method returns false .