Apr 15, 2025 · A Wrapper class in Java is one whose object wraps or contains primitive data types. When we create an object in a wrapper class, it contains a field, and in this field, we can store primitive data types. In other words, we can wrap a primitive value into a wrapper class object. Let’s check on the wrapper classes in Java with examples.

The wrapper classes in Java are used to convert primitive types (int, char, float, etc) into corresponding objects. Each of the 8 primitive types has corresponding wrapper classes.

Wrapper classes provide a way to use primitive data types (int, boolean, etc..) as objects. The table below shows the primitive type and the equivalent wrapper class: Primitive Data Type

Creating Java Wrapper Class Objects. In Java, to create a wrapper object, you have to use the wrapper class instead of the primitive data type. If you want to print the values of these objects, just print the object. Consider the below syntax: wrapper_class object_name = value; Example of Java Wrapper Class. Following is an example of boxing ...

Feb 3, 2025 · A class that wraps a primitive data type into an object is called wrapper class in Java. In simple words, wrapper class provides a mechanism to convert primitive data type value into an object and vice-versa. For example, wrapping int into Integer class, wrapping double into Double class, and wrapping char into Character class.

Mar 17, 2024 · In this quick tutorial, we talked about wrapper classes in Java, as well as the mechanism of autoboxing and unboxing.

Java wrapper classes represent or wrap the primitive data types’ values as an object. When an object is defined in a wrapper class, it includes a field that can store the primitive data types’ values. Note – T hat the object of one data type includes a field of the specific data type only.

These classes “wrap” the primitive data type value in an object. Hence the name “Wrapper Classes”. All wrapper classes are immutable classes. Wrapper class in Java provides the mechanism to convert primitive into object and object into primitive.

Oct 10, 2024 · Wrapper classes provide methods to perform operations on primitive types, such as parsing, conversion, and null handling, which cannot be done with the primitives directly. In this tutorial, we'll explore Java's wrapper classes with several code examples to demonstrate how they are used and how they convert between primitive types and objects.

Aug 19, 2022 · We can convert from binary or octal or hexadecimal before assigning a value to wrapper object using two argument constructor. Below program explains the method in details. Output: Summary. Each of primitive data types has dedicated class in java library. Follow us on Facebook and Twitter for latest update.