How-to articles, tricks, and solutions about INITIALIZATION

To initialize a static Map in Java, you can use the Map interface's of method, which was added in Java 9. The of method creates an immutable Map with a fixed set of key-value pairs.

To declare an ArrayList with values in Java, you can use the Arrays.asList method and pass it an array or a list of values.

To directly initialize a HashMap in Java, you can use the put() method to add elements to the map.

You can initialize an ArrayList in one line in Java using the following syntax:

There are several ways to initialize an array in Java. Here are some examples: Using the new operator:

Here is an example of how you can initialize an array of objects in Java:

To initialize the values of a HashSet when constructing the set, you can use one of the HashSet constructors that takes a Collection as an argument.

In Java, you can initialize multiple variables to the same value in a single statement by separating the variables with a comma.

There are several ways to initialize a String array in Java. Here are a few examples:

If you are getting the "variable might not have been initialized" error in Java, it means that you are trying to use a local variable that has not been assigned a value.