Web Reference: Dec 20, 2013 · Wrapper classes are used to convert any data type into an object. The primitive data types are not objects; they do not belong to any class; they are defined in the language itself. Jul 23, 2025 · They convert primitive data types into objects. Objects are needed if we wish to modify the arguments passed into a method (because primitive types are passed by value). The classes in java.util package handles only objects and hence wrapper classes help in this case also. Dec 23, 2025 · This is where wrapper classes come into play. Wrapper classes act as “containers” for primitive data types, converting them into objects. They bridge the gap between primitives and object-oriented features of Java, enabling primitives to be used in scenarios where objects are mandatory.
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