Answers for "Why do we need Wrapper classes in Java?"

7

wrapper classes in java

Wrapper classes: classes that are dedicated to primitives        
Byte, Short, Integer, Long, Float, Double, Character, Boolean
presented in "java.lang" package
AutoBoxing: converting primitive values to wrapper class
		int a = 100;
		Integer b = a  // auto boxing
Unboxing: converting wrapper class value to primitives
		Integer a = 100;
		int b = a;  // unboxing
	int a = 100;
	double b = a;    // none
Posted by: Guest on May-28-2021
0

Java wrapper classes

ArrayList<Integer> myNumbers = new ArrayList<Integer>(); // Valid
Posted by: Guest on August-01-2021

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