I have to create a program that takes a list of student names and grades and then takes the 2 highest scores and reads them, but the result won't show. I'm pretty sure it's because I'm not sure about how to code the last part which should output the results. Here's my code.
import java.util.Scanner;
//Reads input and outputs 2 highest scores
//for loop. nested for.
public class HighestScores {
public static void main(String[] args) {
//create values
String studentName;
I'm having trouble with a program, reversing numbers. I got the program itself to work! However, I am having an issue with the output.
import java.util.Scanner; public class p1a { public static void main(String[] args) { // TODO Auto-generated method stub Scanner input = new Scanner(System.in); int n; int reverse = 0;
[Code] .....
If I were to input, say 2341, I would get this: The reverse of 0 is 1432
The 0 should have been 2341, or whatever I input. What am I doing wrong?
I tried to move line 21 : (System.out.println("The reverse of " +n+ " is "+reverse);
Above the while loop, but instead get:
The reverse of 2341 is 0
How can I get my input and my result together in the same line?
I have to do a small program about parking. In the 2-d array (parking lot), contains different kinds of cars, the user have to :
1)enter which car he wanna move, 2)what direction (w,a,s,d) and after that, 3) how many moves( not out of bound) he wants to make, and finally 4) we print out the new parking lot for his next move
And i am stuck at how to move the car to corresponding position and then prompt user for the next move?
For example:
I want to move A to the right by 1 (d)
擷取.PNG print result: 擷取1.PNG
How do I do that? The code that i have right now
public class CarParkGame { public static void main( String [] args) { String carPark[][] = new String [6][6] ; carPark[0] = new String[] {"A","A","A","0","0","0"}; carPark[1] = new String[] {"b","0","0","0","0","c"}; carPark[2] = new String[] {"b","X","X","0","0","c","<exit>"};
I am creating a simple Symptom Checker application. The problem I have is that I'm trying to retrieve user input (JTextField) by comma's using StringTokenizer which contacts the database for a result which matches the user's input (SELECT * FROM DIAGNOSIS WHERE ?, ?, ?) . It successfully finds the correct result however only in a particular format. Not different combinations....
for example, if I enter say within the JTextField: "tearful, nausea, lack of motivation" it will find the result successfully (as that is how it is formatted within the particular column (in the database table) i wish to display a result from) however, if i enter a different combination of these symptoms: "nausea, lack of motivation, tearful" - it will not find any result. I'm very unsure how to make it work regardless of what is inputted first, second or last.
Here is the code:
public void actionPerformed(ActionEvent e) { try { String abc = fieldsymp1.getText(); StringTokenizer str = new StringTokenizer(abc); while (str.hasMoreTokens()) { str.nextToken((", ")).trim();
I have printed the result of my program into an output file.
For some reason I can't figure out how to get the file output.txt to actually print.
I've tried printing it like I would normally print a file but it's not working.
Java Code:
final PrintStream console = System.out; File file = new File("output.txt"); PrintStream out = new PrintStream(new FileOutputStream(file)); System.setOut(out); System.out.println(collection.toString()); System.setOut(console);
What do I do after this? mh_sh_highlight_all('java');
I was doing some exercises of a java tutorial website, and realized when I ran the code that they had , my program just kept running with no result, why is this? It just hangs.
package mystack; public class MyStack { private int maxSize; private int[] stackArray; private int top; public MyStack(int s)
Why this extremely simple program seems to be giving me a negative value for amount of calculations done within one minute ( Just using it as a bit of fun to see how different computers in the office perform).
Java Code:
class Benchmark { public static void main(String[] args) { long endTime = System.currentTimeMillis() + 60000; int count = 0; for (int i = 0; System.currentTimeMillis() < endTime; i++) { double x = Math.sqrt(System.currentTimeMillis()); count = i; } System.out.print(count + " calculations per minute"); } } mh_sh_highlight_all('java');
I am getting results between -2.1billion and -3.4billion which to me would make sense since they are not the best computers in the world but I would be expecting a positive value?
My mad lib program was able to store my three notepad text: noun, verb, and story. I would like to find out what is the best way to make it display my result randomize my story from notepad? once everything is stored?
import java.awt.*; import java.awt.event.*; import java.io.*; import javax.swing.*; import java.util.*; public class StoryProject extends JFrame implements ActionListener
So I was going to try to create a program that prompts input and creates a file (That didn't exist before) with that input as name.Then, the program prompts inputs after stating questions such as 1 + 1, then if the user inputs an answer, put "Question # = Correct "or" Wrong.Code SO Far:
Java Code:
import java.io.BufferedReader; import java.io.File; import java.io.InputStreamReader; public class File_Read { public File_Read() {//File_Read is the Interactive object
[code]....
So that it puts the Correct or Wrong into the file.
Write a program that allows the user to enter students names followed by their test scores and outputs the following information(assume that the maximum nmber of students in the class is 50; if the number of students is less than 50, to indicate the end of input data, after entering the last students data, on a line by itself, hold the ctrl key/press z and then press the Enter key):
a) Class average
b) Names of all the students whose test scores are below the class average, with an appropriate message( youre below class average)
c) Highest test score and the names of all the students having the highest score.
Use methods.
Now I wrote the program but i cant figure out how to end the input by pressing ctrl key/press z and then press the Enter key...
Here is my code
import java.util.Scanner; public class ClassAverage { public static void main(String args[]) { String names[] = new String[50];
A GUI program that allows user to enter their name and the program will convert it in number using array.
For example if i input "EUNISE" the output should be 521149195
Because the letter equivalent of
a = 1 b = 2 c = 3 d = 4 e = 5 f = 6 g = 7 h = 8 i = 9 j = 10 k = 11 l = 12 m = 13 n= 14 o = 15 p = 16 q = 17 r= 18 s = 19 t = 20 u = 21 v = 22 w = 23 x = 24 y = 25 z = 26
I am trying to create a fortune teller and everything is running fine except the program does not prompt you to answer the questions
Do you like donuts? and What did you have for breakfast?
Here is the code this is in Bluej :
import java.util.Scanner; public class FortuneTeller { public static void main(String[] args) { Scanner keyboard = new Scanner(System.in); System.out.println("Welcome to Fortune Teller");
I just want to know how I can get my program to end when the user inputs "0." By using: System.exit(0);
import java.util.Scanner; public class TestCode { public static void main (String [ ]args ) { Scanner console =new Scanner(System.in); System.out.println("To exit program input 0"); for (int y = 1; y < 11; y++ ){ // Executes output 10 times
So i'm just toying around with making a simple inventory system, and when i'm trying to get the user's input (first the ID number, then the item name, then the item price) it will take the ID number, output asking for the name (but not take any input for it) and then ask for the item's price. I'm really not sure why it's never happened to me before when getting user input.
This is the input part of my code:
public void getInfoAdd() { int id; String name; double price; System.out.print("Enter ID: "); id = sc.nextInt(); System.out.print("Enter item name:"); name = sc.nextLine(); System.out.print("Enter desired price: "); price = sc.nextInt(); addItem(id, name, price); }
And this is what it outputs:
Quote Enter ID: 2 Enter item name:Enter desired price: 40 Successfully added: 2 $40.0
Writing a program to take input from user. This input must be done with numbers only. If the input is a string I would like the program to loop and ask for input again.
double depositCheckingAmount; do { System.out.println("Please insert amount to deposit into checking.");
[Code]....
As you can see my attempt is to use the ! expresssion incase the input does not equal a double. Is there another method I should be using?
I am stumped on a coding project I am working on. I am making an inventory program with predefined values for the items. I am not sure how to iterate through my arrayList, and allow the user to input the "number sold."
I have made an arrayList and populated it using the add(), but I am not sure if it is working correctly. This is my inventoryItem class :
package inventory; import java.text.DecimalFormat; public class inventoryItm { String itemName; double unitPrice; int numberSold;
I am trying to read contents from a file and display them to the user. However, when I enter the file into the program I get the following error: "exception in thread 'main' java.util.MismatchException. What am i doing wrong?
import java.util.Scanner; import java.io.*; public class Project1{ public static void main(String[] args) throws FileNotFoundException { double balance; double item1Price;
I am trying to write a program in Java that uses threads.Below is the program requirements:The goal of this assignment is to create a routine which creates multiple threads, has them do work in parallel, and terminates when the last thread has finished.
The Scenario: There are several groups of people in a bar watching the Olympics cheering for their country. Each group will cheer for their country some given number of times, with a random pause (between 2 and 5 seconds) between each cheer. There is enough room at the bar for up to ten different groups to sit (each would be cheering for a different country).
The Program: The task is to write a program that will simulate these cheers using threads. The program should be called cheer.X (X being the language of choice). You may use any language that supports threading. When the program is run it should ask for the number of countries and then the name and how many times it will be cheered for. The main function will then create a thread for each team and each thread is responsible for cheering the specified number of times for the correct team at the random interval. You will submit the proper source code file for me to open and compile myself, not an executable.
An example run would look something like this: How many countries are supported at the bar? 3 Enter the first: China How many cheers? 2 Enter the second: USA How many cheers? 4 Enter the third: Russia
import java.util.Scanner; public class main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int number; System.out.println("Input a number");
[code]....
What i want to do is that if the number is greater than 50 to count until 100. else if the number is less than fifty to count for example from 36 to zero.
I am new to Java an have to Create a program that keeps track of the following information input by the user: First Name, Last Name, Phone Number, and Age. Now - let's store this in a multidimensional array that will hold 10 of these contacts. So our multidimensional array will need to be 10 rows and 4 columns.You should be able to add and remove contacts in the array.
