» » Long Wrapper Class

Long Wrapper Class:

  • Long Class is presented in java.lang package.
  • java.lang.Long class is used to represent primitive Long Value to Long object.

Long Class :

Float Class Definition

  1. public final class Long
  2. extends Number 
  3. implements Comparable<Long>



Constructors:

1.Long(long value):
  • The Constructor Long(long value) represents the specified long argument.

2.Long(String s):
  • The Constructor Long (String s) represents the long value indicated by the String parameter.

Methods:

1.public static int bitCount(long i); Program:

  1. package com.instanceofjava; 
  2. import java.lang.*; 
  3.  
  4. public class LongExample { 
  5.  
  6. public static void main(String[] args) {
  7.  
  8.   long l = 4561; 

  9.  System.out.println("Number = " + l);
  10.  System.out.println("Binary = " + Long.toBinaryString(l));
  11.  System.out.println("Number of one bits = " + Long.bitCount(l));
  12.  
  13. }
  14. }

Output:
  1. Number = 4561 
  2. Binary = 1000111010001 
  3. Number of one bits = 6

2.public byte byteValue():

This method returns value of long as byte.

Program:

 

  1. package com.instanceofjava;
  2.  import java.lang.*;

  3. public class LongExample {

  4. public static void main(String[] args) {

  5.  Long obj = new Long(30);

  6.  byte b = obj.byteValue();
  7.  System.out.println("Value of b = " + b);
  8.  
  9.  }
  10. }


Output:
  1. Value of b = 30

3.public int compareTo(Long anotherLong):

Program:

  1. package com.instanceofjava;
  2. import java.lang.*;

  3. public class LongExample {

  4. public static void main(String[] args) {
  5.  
  6.    Long a = new Long(63255);
  7.   Long b = new Long(71678);
  8.  
  9.    int result=  a.compareTo(b);
  10.    ifresult> 0) {
  11.    System.out.println("a is greater than b");
  12.    }
  13.    else ifresult< 0) {
  14.    System.out.println("a is less than b");
  15.    }
  16.    else {
  17.    System.out.println("a is equal to b");
  18.    }
  19.  
  20.    }
  21. }




Output:
  1. a is less than b

4.public static Long decode(String nm) throws NumberFormatException:

Program:


  1. package com.instanceofjava;
  2. import java.lang.*;

  3. public class LongExample{

  4.  public static void main(String[] args) {

  5.    Long l = new Long(10);
  6.    String str = "57820";
  7.    System.out.println("Number = " + l.decode(str));
  8.  
  9.   }
  10. }

Output:
  1. 57820




Instance Of Java

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