Operations in Bank

import java.util.Scanner;
class Account {                 //node class for storing data
	int Account_No;          
	String Name;
	String Address;
	float Balance;
	Account next;
	Account(String nm ,String ad, int acc_no,float balance){       //constructor for accepting and storing data
		Account_No = acc_no;
		Name = nm;
		Address = ad;
		Balance = balance;
		next = null;
	}
}
class Bank{
	Account head;
	Scanner sc = new Scanner(System.in);
void accept() {                    //creating accept function for creating list
		Account ptr;
        int ans=0;
			do {
		System.out.println("Enter the account number: ");
		int acc_no = sc.nextInt();
		System.out.println("Enter the name of account holder: ");
		String nm = sc.next();
		System.out.println("Enter the adress of account holder: ");
		String ad = sc.next();
		System.out.println("Enter balance in the account: ");
		float balance = sc.nextFloat();
		System.out.println();
			Account temp = new Account(nm,ad,acc_no,balance);   //passing details
			System.out.println("Do you want to add another node?? Press 1 if yes or else 0 : ");
			ans = sc.nextInt();
			temp.next=null;
			if (head==null) {          //  condition for storing data in first node
				head = temp;
			}
				else                   //data will be stored in node next to first node
				{
					ptr = head;
					while(ptr.next!=null)
					{
						ptr = ptr.next;
					}
					ptr.next = temp;
				}
			} while(ans==1);
			 
		}
void insert() {                         //creating insert function to add node at the end of list
	System.out.println("***Enter the data for node to be inserted***");
	System.out.println("Enter the account number: ");
	int acc_no = sc.nextInt();
	System.out.println("Enter the name of account holder: ");
	String nm = sc.next();
	System.out.println("Enter the adress of account holder: ");
	String ad = sc.next();
	System.out.println("Enter balance in the account: ");
	float balance = sc.nextFloat();
	System.out.println();
	Account temp = new Account(nm,ad,acc_no,balance);     //passing details
	if(head==null) {                   //first node
		head = temp;	
	}
	else {
		Account start = head;
		while(start.next!=null) {          // traversing till last node coz we have to insert at last node
			start=start.next;
		}
		start.next=temp;
	}
	System.out.println("The data is Inserted!!");
}
 void insertAtStart() {               //creating function to insert node at start of list
	System.out.println("**Enter the data of node you want to insert at Start**");
	System.out.println("Enter the account number: ");
	int acc_no = sc.nextInt();
	System.out.println("Enter the name of account holder: ");
	String nm = sc.next();
	System.out.println("Enter the adress of account holder: ");
	String ad = sc.next();
	System.out.println("Enter balance in the account: ");
	float balance = sc.nextFloat();
	Account temp = new Account(nm,ad,acc_no,balance);
	temp.next=null;       //this new node will point to null
	temp.next=head;      // this new node will point to initial head
	head=temp;            //head will point to the temp node
	System.out.println("The data is inserted at strart!!");
}
  void insertAtindex(int index) {      //creating function to insert node at given index by passing index as parameter
	 int ind;
        System.out.println("Enter the index where you want to insert:");
        ind = sc.nextInt();
	 if(ind==0)   //if entered index is 0 it will call insertAtStart() function
		 insertAtStart();
	 else  {
		 if (ind<0) {         //if entered index is negative which is invalid
			 System.out.println("Invalid Index!!");
		 }
		 else {
		 Account node = head; //node points to head
         for (int i = 0; i < ind - 1; i++) //using for loop to reach at the required index
         {
             node = node.next;     //points to next node
         System.out.println("**Enter the data of node you want to insert at given index**");
     	System.out.println("Enter the account number: ");
     	int acc_no = sc.nextInt();
     	System.out.println("Enter the name of account holder: ");
     	String nm = sc.next();
     	System.out.println("Enter the adress of account holder: ");
     	String ad = sc.next();
     	System.out.println("Enter balance in the account: ");
     	float balance = sc.nextFloat();
     	Account temp = new Account(nm,ad,acc_no,balance);
     	temp.next=null;
     temp.next=node.next;    
     node.next=temp;
     System.out.println("The data is inserted at index : "+ind);
     
	 }
	 }
 }
 }
void delete(int index) {        //creating function to delete a specific node 
	if (head==null) {             //condition for empty list
		System.out.println("Empty List");
	}
	else {
		if(index==0) {      //    deleting head
			head=head.next;
		}
		else {
			Account ptr=head;             //   ptr pointing towards head
			Account ptr1=null;    // temporary node ptr1
			for(int i=0;i<index-1;i++)   // using for loop we can find the node before the node which is to be deleted
				ptr=ptr.next;
			ptr1=ptr.next;
			ptr.next=ptr1.next;	
		}
		System.out.println("Deleted Successfully!!");
	}
}
void display() {          //creating display function to display all nodes
	Account ptr = head;    //ptr pointing to head
     if(head==null) {
   	System.out.println("Empty List");
         }
		else
	{
			int i=1;
		while(ptr.next!=null) {        //traversing through list
			    System.out.println("**Details of Account holder**");
				System.out.println("Name of the account holder: " +ptr.Name);
				System.out.println("Address of the account holder: " +ptr.Address);
				System.out.println("Account Number: "+ptr.Account_No);
				System.out.println("Balance in the account: " +ptr.Balance);
				ptr=ptr.next;
				i++;
				System.out.println();
			}     
		System.out.println("**Details of Account holder**");  //printing last node
		System.out.println("Name of the account holder: " +ptr.Name);
		System.out.println("Address of the account holder: " +ptr.Address);
		System.out.println("Account Number: "+ptr.Account_No);
		System.out.println("Balance in the account: " +ptr.Balance);
		System.out.println();
	}
}
void deposit() {       
	if (head == null)           //condition for empty list    
        System.out.println("List is empty!");
    else
    {
        Account node = head;
        System.out.println("Enter the account number in which you want to deposit: ");
        int acc_no = sc.nextInt();
        while (node.Account_No != acc_no) //traversing through list to find the account number
        {
            node = node.next;
            if (node == null) //if account having entered account number not found
            {
                System.out.println("Account having account number " +acc_no+ " not found!!");
                return;
            }
        }
        System.out.println("Enter the amount you want to deposit? ");
        float balance = sc.nextFloat();
        node.Balance = node.Balance + balance; //Depositing money
        System.out.println("Deposited successfully!!");
    }
}
void withdraw() {
	if (head == null)        //condition for empty list
        System.out.println("List is empty!");
	else
	{
		Account node = head;
        System.out.println("Enter the account number from which you want to withdraw: ");
        int acc_no = sc.nextInt();
        while (node.Account_No != acc_no) //traversing through list to find the account number
        {
            node = node.next;
            if (node == null) //if account having entered account number not found
            {
                System.out.println("Account having account number " +acc_no+ " not found!!");
                return;
            }
        }
        System.out.println("Enter the amount you want to deposit? ");
        float balance = sc.nextFloat();
        if(node.Balance-balance<1000) {     //condition for withdrawing money
        	System.out.println("You cannot withdraw money because of insufficient Balance!!");
        }
        else {
        	node.Balance = node.Balance - balance; //withdrawing money
            System.out.println("Withdrawn successfully!!");
        }
	}
}
}

public class Bank_Application {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
     Bank l = new Bank();
     int choice;
     Scanner sc = new Scanner(System.in);
     do{
     System.out.println("Which banking operation you want to perform:");
     System.out.println("1.Accept a list of account holders: ");
     System.out.println("2.Delete the data of any account holder ");
     System.out.println("3.Insert the data at the start of list:   ");
     System.out.println("4.Insert the data at a particular index in list:  ");
     System.out.println("5.Insert the data at the end of list: ");
     System.out.println("6.Display the list: ");
     System.out.println("7.Deposit money in desired account:");
     System.out.println("8.Withdraw money from desired account: ");
     System.out.println();
     System.out.println("Enter your choice: ");
     System.out.println();
     choice=sc.nextInt();
     switch (choice)
     {
         case 1:
             l.accept();
             break;
         case 2:
        	 System.out.println("Enter index at which you want to delete a node: ");
            int index=sc.nextInt();
             l.delete(index);
             break;
         case 3:
        	 l.insertAtStart();
             break;
         case 4:
             System.out.println("Enter index at which you want to insert a node: ");
             index=sc.nextInt();
             l.insertAtindex( index);
             break;
         case 5:
        	 l.insert();
             break;
         case 6:
             l.display();
             break;
         case 7:
             l.deposit();
             break;
         case 8:
             l.withdraw();
             break;
         default:
             System.out.println("Invalid choice!!!");
     }
         System.out.println();
         System.out.println("If you want to continue press 1 or else 0 : ");
         choice=sc.nextInt();
     }
     while (choice==1);
     System.out.println("***Bank is Closed***");
 }
}

/* OUTPUT:
 * Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

1
Enter the account number: 
1
Enter the name of account holder: 
mitali
Enter the adress of account holder: 
abc
Enter balance in the account: 
4444

Do you want to add another node?? Press 1 if yes or else 0 : 
1
Enter the account number: 
2
Enter the name of account holder: 
anjali
Enter the adress of account holder: 
xyz
Enter balance in the account: 
222

Do you want to add another node?? Press 1 if yes or else 0 : 
0

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

6
**Details of Account holder**
Name of the account holder: mitali
Address of the account holder: abc
Account Number: 1
Balance in the account: 4444.0

**Details of Account holder**
Name of the account holder: anjali
Address of the account holder: xyz
Account Number: 2
Balance in the account: 222.0


If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

2
Enter index at which you want to delete a node: 
1
Deleted Successfully!!

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

6
**Details of Account holder**
Name of the account holder: mitali
Address of the account holder: abc
Account Number: 1
Balance in the account: 4444.0


If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

3
**Enter the data of node you want to insert at Start**
Enter the account number: 
3
Enter the name of account holder: 
sakshi
Enter the adress of account holder: 
wer
Enter balance in the account: 
7869
The data is inserted at strart!!

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

4
Enter index at which you want to insert a node: 
2
Enter the index where you want to insert:
2
**Enter the data of node you want to insert at given index**
Enter the account number: 
34
Enter the name of account holder: 
rutuja
Enter the adress of account holder: 
yui
Enter balance in the account: 
4532
The data is inserted at index : 2

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

5
***Enter the data for node to be inserted***
Enter the account number: 
53
Enter the name of account holder: 
madhura
Enter the adress of account holder: 
fgh
Enter balance in the account: 
5555

The data is Inserted!!

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

6
**Details of Account holder**
Name of the account holder: sakshi
Address of the account holder: wer
Account Number: 3
Balance in the account: 7869.0

**Details of Account holder**
Name of the account holder: mitali
Address of the account holder: abc
Account Number: 1
Balance in the account: 4444.0

**Details of Account holder**
Name of the account holder: rutuja
Address of the account holder: yui
Account Number: 34
Balance in the account: 4532.0

**Details of Account holder**
Name of the account holder: madhura
Address of the account holder: fgh
Account Number: 53
Balance in the account: 5555.0


If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

7
Enter the account number in which you want to deposit: 
34
Enter the amount you want to deposit? 
500
Deposited successfully!!

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

6
**Details of Account holder**
Name of the account holder: sakshi
Address of the account holder: wer
Account Number: 3
Balance in the account: 7869.0

**Details of Account holder**
Name of the account holder: mitali
Address of the account holder: abc
Account Number: 1
Balance in the account: 4444.0

**Details of Account holder**
Name of the account holder: rutuja
Address of the account holder: yui
Account Number: 34
Balance in the account: 5032.0

**Details of Account holder**
Name of the account holder: madhura
Address of the account holder: fgh
Account Number: 53
Balance in the account: 5555.0


If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

8
Enter the account number from which you want to withdraw: 
1
Enter the amount you want to deposit? 
1111
Withdrawn successfully!!

If you want to continue press 1 or else 0 : 
1
Which banking operation you want to perform:
1.Accept a list of account holders: 
2.Delete the data of any account holder 
3.Insert the data at the start of list:   
4.Insert the data at a particular index in list:  
5.Insert the data at the end of list: 
6.Display the list: 
7.Deposit money in desired account:
8.Withdraw money from desired account: 

Enter your choice: 

6
**Details of Account holder**
Name of the account holder: sakshi
Address of the account holder: wer
Account Number: 3
Balance in the account: 7869.0

**Details of Account holder**
Name of the account holder: mitali
Address of the account holder: abc
Account Number: 1
Balance in the account: 3333.0

**Details of Account holder**
Name of the account holder: rutuja
Address of the account holder: yui
Account Number: 34
Balance in the account: 5032.0

**Details of Account holder**
Name of the account holder: madhura
Address of the account holder: fgh
Account Number: 53
Balance in the account: 5555.0


If you want to continue press 1 or else 0 : 
0
***Bank is Closed***

 */