Can You Pass Arrays Anonymously in Java?

Anonymous Array Arguments

When passing an array as an argument to a method, programmers often create a named variable to store the array reference. For example, the following code declares an array of strings and passes it to a method m():

String[] strs = {"blah", "hey", "yo"};
m(strs);

However, in certain situations, declaring a variable for an array that is used only once can be verbose and unnecessary. Java provides a solution for this: anonymous array arguments.

Declaring an Array In-line

To declare an array directly within a method call, use the following syntax:

m(new String[]{"blah", "hey", "yo"});

In this example, the new keyword is used to create a new array of strings, which is then passed to m(). The result is equivalent to the first code snippet, but it avoids the need to declare a separate variable.

Anonymous array arguments can be used for any type of array. They offer a concise and efficient way to create and pass arrays as method arguments, especially when the array is used only once.

The above is the detailed content of Can You Pass Arrays Anonymously in Java?. For more information, please follow other related articles on the PHP Chinese website!