About 153,000 results
Open links in new tab
  1. design patterns - What is a wrapper class? - Stack Overflow

    May 20, 2009 · A wrapper class is a class that is used to wrap another class to add a layer of indirection and abstraction between the client and the original class being wrapped.

  2. Java: Why are wrapper classes needed? - Stack Overflow

    A wrapper class wraps (encloses) around a data type (can be any primitive data type such as int, char, byte, long) and makes it an object. Here are a few reasons why wrapper classes are …

  3. When to use wrapper class and primitive type - Stack Overflow

    Oct 15, 2009 · When I should go for wrapper class over primitive types? Or On what circumstance I should choose between wrapper / Primitive types?

  4. java - Why we need wrapper class - Stack Overflow

    Dec 20, 2013 · I understand what is a wrapper class, they primitive types (eg: int, double, etc) to objects of their respective class (eg: Integer, Double, etc). But, why we need Wrapper classes, …

  5. Why are there wrapper classes in Java? - Stack Overflow

    2 Wrapper Class: Java uses primitive types, such as int, char, double to hold the basic data types supported by the language. Sometimes it is required to create an object representation of …

  6. What is the real difference between primitives and wrapper classes …

    Aug 7, 2020 · To solve this problem, wrapper classes were created. Now, instead of needing 8 separate implementations of dynamic array (1 for reference types and 7 for primitive types), …

  7. java - What is the main difference between primitive type and …

    Nov 12, 2012 · In Java, an instance of a primitve class holds the actual value of the instance, but instance of a wrapper class holds a reference to the object. i.e. The address of the place …

  8. Wrapper class in java - Stack Overflow

    Jul 23, 2012 · I think your specific question concerns the Java Primitive Wrapper Classes, which are classes that represent the primitive types (int, double, boolean, byte, and so on) as …

  9. java - how to create wrapper class for any user defined class

    Apr 20, 2011 · Homework? Anyways, do you mean you want the Java program to be creating wrapper classes on-the-fly, at runtime? Or do you mean that as part of the program you're …

  10. java - Can we call String as a wrapper class? - Stack Overflow

    Jul 6, 2011 · 13 Wrapper classes are used to "wrap" the primitives data types into objects so that they can be included in the activities which are reseved for the objects. String class wraps the …