In java I need help on this specific code for this lab.
1 answer:
Answer:
Explanation:
The following code is written in Java and creates the two methods as requested each returning the desired double[] array with the averages. Both have been tested as seen in the example below and output the correct output as per the example in the question. they simply need to be added to whatever code you want.
public static double[] rowAvg(int[][] array) {
double result[] = new double[array.length];
for (int x = 0; x < array.length; x++) {
double average = 0;
for (int y = 0; y < array[x].length; y++) {
average += array[x][y];
}
average = average / array[x].length;
result[x] = average;
}
return result;
}
public static double[] colAvg(int[][] array) {
double result[] = new double[array[0].length];
for (int x = 0; x < array[x].length; x++) {
double average = 0;
for (int y = 0; y < array.length; y++) {
average += array[y][x];
}
average = average / array.length;
result[x] = average;
}
return result;
}
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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"));
}
}
