The inFS.open(str) function has a string parameter str that specifies the _____ of the file to open.
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Answer:
The full code is added in the comments as per regulations. Continuation of driver.java code from the comments is available on the screenshot
Explanation:
Editable code:
//ListingNode.java
class ListingNode {
private listpro listing11;
private ListingNode nextnode;
public ListingNode(listpro listing11) {
this.listing11 = listing11;
}
public listpro getListing() {
return listing11;
}
public void setListing(listpro listing11) {
this.listing11 = listing11;
}
public ListingNode getnextnode() {
return nextnode;
}
public void setnextnode(ListingNode nextnode) {
this.nextnode = nextnode;
}
}
public class Listlinked {
private ListingNode headnode;
public Listlinked() {
headnode = null;
}
public void insert(listpro listing11) {
ListingNode listingNode = new ListingNode(listing11);
if(headnode == null) {
headnode = listingNode;
} else {
ListingNode tempval = headnode;
while (tempval.getnextnode() != null) {
tempval = tempval.getnextnode();
}
tempval.setnextnode(listingNode);
}
}
public listpro fetch(String name) {
ListingNode tempval = headnode;
while (tempval != null) {
if(tempval.getListing().getNamedata().equalsIgnoreCase(name)) {
return tempval.getListing();
}
tempval = tempval.getnextnode();
}
return null;
}
public boolean delete(String name) {
ListingNode tempval = headnode;
boolean found = false;
if(headnode != null) {
if(headnode.getListing().getNamedata().equalsIgnoreCase(name)) {
headnode = headnode.getnextnode();
found = true;
} else {
while (tempval.getnextnode() != null) {
if (tempval.getnextnode().getListing().getNamedata().equalsIgnoreCase(name)) {
found = true;
tempval.setnextnode(tempval.getnextnode().getnextnode());
break;
}
tempval = tempval.getnextnode();
}
}
}
return found;
}
public void printAll() {
ListingNode tempval = headnode;
while (tempval != null) {
System.out.println(tempval.getListing().toString());
tempval = tempval.getnextnode();
}
}
}
//listpro.java
import javax.swing.*;
public class listpro {
private String Name;
private int ID;
private float grade_point;
public listpro(){
}
public listpro(String Name, int ID, float grade_point){
this.Name = Name;
this.ID = ID;
this.grade_point = grade_point;
}
public String getNamedata() {
return Name;
}
public void setNamedata(String Name) {
this.Name = Name;
}
public int getID() {
return ID;
}
public void setID(int ID) {
this.ID = ID;
}
public float getgrade_point() {
return grade_point;
}
public void setgrade_point(float grade_point) {
this.grade_point = grade_point;
}
public listpro deepCopy(){
listpro clone = new listpro(Name,ID,grade_point);
return clone;
}
public String toString(){
return "Name : " + Name + "\nID :" + ID + "\nGrade points :" + grade_point;
}
public void input(){
Name = JOptionPane.showInputDialog("Enter a Name");
ID = Integer.parseInt(JOptionPane.showInputDialog("Enter an ID"));
grade_point = Float.parseFloat(JOptionPane.showInputDialog("Enter a grade point average"));
}
}
