What are wrapper classes?

Answer Posted / vijayakumar chinnasamy

Wrapper class : A class to enclosed(wrapped) the primitive
data type.

eg: Integer - it wrapp the int primitive data type.
Character - it wrap the chat data type.

int a=10;
Integer i=new Integer(a);

Java Wrapper class:

Integer,Byte,Short,Character,Boolean,Long,Float,Double.

Is This Answer Correct ?    13 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can a variable be local and static at the same time?

548


Can we print null in java?

577


How to run a JAR file through command prompt?

721


What is object english?

585


Why volatile is used in java?

532






Differentiate between == and equals().

602


public class Test { public static void main(String[] args) { int countA = 0; int countB = 0; int countC = 0; int countD = 0; int countE = 0; int countF = 0; int countG = 0; int countH = 0; int countI = 0; int countJ = 0; int countK = 0; int countL = 0; int countM = 0; int countN = 0; int countO = 0; int countP = 0; int countQ = 0; int countR = 0; int countS = 0; int countT = 0; int countU = 0; int countV = 0; int countW = 0; int countX = 0; int countY = 0; int countZ = 0; } } Can anybody tell me any alternate solution(like loop or something) to automate this initialization process. Ex:- for(char chr='A';chr<='Z'; chr++) { (int) String "count"+chr = 0; }

1850


What is assembly condition codes?

560


Is java util list serializable?

542


Explain wait(), notify() and notifyall() methods of object class ?

604


How many types of equations are there?

544


What is the function of http?

535


What are the pillars of java?

491


What method is used to specify a container's layout in java programming?

547


Is java se free?

524