EBK JAVA PROGRAMMING
8th Edition
ISBN: 9781305480537
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Expert Solution & Answer
Chapter 7, Problem 9RQ
<PROGRAM-DESCRIPTION-ANSWER>
The expression name1.compareTo(name2) contains the value “-1”.
Hence, the correct option is “C”.
</PROGRAM-DESCRIPTION-ANSWER>
Explanation of Solution
Given:
String name1 = new String ("Jordan");
String name2 = new String ("Jore");
To find:
name1.compareTo (name2)
Explanation:
- Here, “name1” is the string variable and assign with a string value “Jordan”.
- The “name2” is the string variable and assign with a string value “Jore”...
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Can you please clean up my code? Because i think there is an implementation problem in the middle. Thank you.
I have attached the airportqueuedata.txt as a screenshot.
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
void enqQ(int&);
void deqQ(int&);
void clearQ(int&, int&);
bool isEmpty(int, int);
bool isFull(int, int);
struct planes // data type plane declared via struct
{
stringrequest;
stringflightNum;
stringstartingPoint;
stringdestination;
stringnumberOfPassengers;
};
void enqQ(int& rear) // adds data to queue
{
rear = (rear + 1) % 10;
}
void deqQ(int& front) // delets data from queue
{
front = (front + 1) % 10;
}
void clearQ(int& front, int& rear) // clears queue
{
front = -1;
rear = -1;
}
bool isEmpty(int front, int rear) // tells if queue is empty or not
{
if (rear == front)
return true;
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bool isFull(int front, int rear) // tells if queue is full or not
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if…
I have the following JAVA code using JFRAME:
String[] headers = {"Username", "First Name", "Middle Name", "Last Name"};
JSONArray jsonArray = readJSONFile("src/registration.json");for (int i = 0; i < jsonArray.size(); i++) {JSONObject obj = (JSONObject) jsonArray.get(i);String uName = (String) obj.get("username");String fName = (String) obj.get("firstName");String mName = (String) obj.get("middleName");String lName = (String) obj.get("lastName");Object[] row = {uName, fName, mName, lName};tableModel.addRow(row);}
My code displays data for each registrant in a table format. Please add an action listener to my GUI code that will delete the selected data from the JSON file.
I have the following JAVA code using JFRAME:
String[] headers = {"Username", "First Name", "Middle Name", "Last Name"};
JSONArray jsonArray = readJSONFile("src/registration.json");for (int i = 0; i < jsonArray.size(); i++) {JSONObject obj = (JSONObject) jsonArray.get(i);String uName = (String) obj.get("username");String fName = (String) obj.get("firstName");String mName = (String) obj.get("middleName");String lName = (String) obj.get("lastName");Object[] row = {uName, fName, mName, lName};tableModel.addRow(row);}
My code displays data for each registrant in a table format. Please add an action listener to my GUI code that will write the data of the selected row to a separate JSON file.
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