Java data type Comparison Table

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Java data type comparison table

Subject avoid have length have example manipulate compose of be use instead of has part contain declare by have name

Java array if you do not a-priori know the number of items it will contain
//the following sums all the elements of an integer array:
for(int i=0; i{
sum += anIntArray[i];
}
collections of objects primitive types and instances of classes an instance of a class which you can subclass or for which you can write your own code Java data type name a fixed number of elements array declaration

Java non-primitive data type Java data type name starting with a capital letter

Java primitive data type wrapper class instances for arithmetic Java primitive data type name

Subject	avoid	have length	have example	manipulate	compose of	be	use instead of	has part	contain	declare by	have name
Java array	if you do not a-priori know the number of items it will contain		//the following sums all the elements of an integer array: for(int i=0; i{ sum += anIntArray[i]; }	collections of objects	primitive types and instances of classes	an instance of a class which you can subclass or for which you can write your own code		Java data type name	a fixed number of elements	array declaration
Java non-primitive data type								Java data type name			starting with a capital letter
Java primitive data type							wrapper class instances for arithmetic	Java primitive data type name

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