Answer to Question #265542 in Java | JSP | JSF for mysti

Question

Edit and complete this linked list code to ASK and DISPLAY, how many members, 1st, middle, lastname, area code, tel number, gender, age

import java.io.*;

public class FinalNode {

public int data;

public FinalNode next;

public static FinalNode firstNode;

public static FinalNode lastNode=null;

public FinalNode(int d,FinalNode n)

{

data=d;

next=n;

}

public static void main(String[] args) throws IOException{

int numnodes, num;

BufferedReader s= new BufferedReader(new InputStreamReader(System.in));

System.out.print("How many nodes to input? ");

numnodes = Integer.parseInt(s.readLine());

for(int i=0;i<numnodes;i++){

System.out.print("Enter node"+(i+1)+":");

num = Integer.parseInt(s.readLine());

FinalNode n =new FinalNode(num, null);

if(lastNode!=null)

{

lastNode.next=n;

lastNode=n;

}

else

{

firstNode=n;

lastNode=n;

}

}

System.out.print("entered nodes: ");

FinalNode n=firstNode;

while(n!=null)

{

System.out.print(n.data+"\t");

n=n.next;

}

System.out.println();

}

}

Answer 1

import java.io.*;

public class FinalNode {
    public String lastName;
    public String areaCode;
    public String telNumber;
    public String gender;
    public int age;
    public FinalNode next;
    public static FinalNode firstNode;
    public static FinalNode lastNode = null;

    public FinalNode(String lastName, String areaCode, String telNumber, String gender, int age) {
        this.lastName = lastName;
        this.areaCode = areaCode;
        this.telNumber = telNumber;
        this.gender = gender;
        this.age = age;
        next = null;
    }

    @Override
    public String toString() {
        return "FinalNode{" +
                "lastName='" + lastName + '\'' +
                ", areaCode='" + areaCode + '\'' +
                ", telNumber='" + telNumber + '\'' +
                ", gender='" + gender + '\'' +
                ", age=" + age +
                '}';
    }

    public static void main(String[] args) throws IOException {
        int numNodes;
        BufferedReader s = new BufferedReader(new InputStreamReader(System.in));
        System.out.print("How many nodes to input? ");
        numNodes = Integer.parseInt(s.readLine());
        for (int i = 0; i < numNodes; i++) {
            System.out.println("Enter node" + (i + 1) + ":");
            System.out.print("Last name: ");
            String lastName = s.readLine();
            System.out.print("Area code: ");
            String areaCode = s.readLine();
            System.out.print("Tel number: ");
            String telNumber = s.readLine();
            System.out.print("Gender: ");
            String gender = s.readLine();
            System.out.print("Age: ");
            int age = Integer.parseInt(s.readLine());
            FinalNode n = new FinalNode(lastName, areaCode, telNumber, gender, age);
            if (lastNode != null) {
                lastNode.next = n;
            } else {
                firstNode = n;
            }
            lastNode = n;
        }
        System.out.println("Total: " + numNodes);
        System.out.println("First: " + firstNode);
        System.out.println("Entered nodes: ");
        int i = 0;
        for (FinalNode n = firstNode; n != null; n = n.next) {
            if (numNodes / 2 == i++) {
                System.out.println("The next node is a middle node:");
            }
            System.out.println(n);
        }
    }

}