Wrapper Class in Java

Author: CodexRitik

src/Wrappers.java

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+import java.util.Scanner;
+
+public class Wrappers {
+ /*
+ Wrapper Class is used for converting a primitive into Object Datatype
+ and Object into Primitive.
+ */
+ public static void main(String[] args) {
+ Scanner scan = new Scanner(System.in);
+ //primitive type of value
+ int value = scan.nextInt();
+ long bigValue = scan.nextLong();
+ char ch = scan.next().charAt(0);
+
+ //Converting this data into Object data (It is called AutoBoxing)
+ Integer objValue = new Integer(value);//int to Integer conversion explicitly
+ //You may simple use
+ Integer ObjValue = value;
+ Long BigValue = bigValue;
+ Character character = ch;
+
+ //Object Data
+ Integer num = 50;
+ Character chars = 'B';
+ Long Values = 64854858L;
+ Float num1 = 34.457F;
+
+ ///Converting Object to Primitive (It is Called UnBoxing)
+ int newNumber = num.intValue();//Converting Integer to int explicitly
+ //You may simple use
+ int newNum = num;
+ char chars1 = chars;
+ long values1 = Values;
+ float num2 = num1;
+
+ System.out.println("int Value:\s"+value+"\t"+"Integer Object value:\s"+ObjValue);
+ System.out.println("long Value:\s"+bigValue+"\t"+"Long Object Value:\s"+BigValue);
+ System.out.println("char Value:\s"+ch+"\t"+"Character Object Value:\s"+character);
+ }
+}