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Doubly Linked list code in java

  public class DLL {     Node head ;     Node tail ;     public DLL (){         head = null ;         tail = null ;     }     class Node {         int data ;         Node next ;         Node prev ;         Node ( int data ){             this . data = data;             next = prev = null ;         }     }     // Insertion at Beginning     public void InsertionAtBeginning ( int data ){         Node newnode = new Node (data);         if (head == null ) {             head = newnode;             tail = newnode;         } else {             newnode ....
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Date Class in Python

class Date :     def __init__ ( self , day , month , year ):         self . day = day         self . month = month         self . year = year     def set_Day ( self , day ):         self . day = day     def get_Day ( self ):         return self . day     def set_Month ( self , month ):         self . month = month     def get_Month ( self ):         return self . month     def set_year ( self , year ):         self . year = year     def get_year ( self ):         return self . year     def DisplayDate ( self ):         print ( f " Date: { self . day } / { self . month } / { self . year } " ) def main ():     date = Date ( 27 , 12 , 2024 )     date . DisplayDate () if __name__ ==...
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Classes in Python

  class Person :     def __init__ ( self , name , age ):         self .name = name         self .age = age     def setName ( self , name ):         self .name = name     def getName ( self ):         return self .name     def setAge ( self , age ):         self .age = age     def getName ( self ):         return self .age class Student ( Person ):     def __init__ ( self , name , age , reg_no ):         super (). __init__ (name, age)         self .reg_no = reg_no     def setRegNo ( self , reg_no ):         self .reg_no = reg_no     def getRegNO ( self ):         return self .reg_no     def DisplayInfo ( self ):         print ( f "Student Name: {self .name } " ) ...
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