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
[Code] .....
I wondering how could i randomize a number 2 with 90% and 4 with 10% , with java eclipse?
View Replies View RelatedI have the program written correctly, but it won't execute.
public class Welcome {
public static void main(String[] args){
//Display message Welcome to Java! on the console
System.out.println("Welcome to Java");
}
}
I compiled the code as written below with "javac Welcome", and use the "Class" name "Welcome"
The file path is: C:Java Programs
Javac Welcome.java
Java Welcome
Below is the result of the above commands
javac Welcome
Create Process() failed with error code 2:
The system cannot find the file specified.
java Welcome
Process started >>>
Error: Could not find or load main class Welcome
<<< Process finished. (Exit code 1)
I am coding in notepad++
I have html code that use form and the result displayed with display tag library the form forward to servlet page but when I use a javascript to change value of hidden after returning to html page the value of hidden input deos not change
<form name="form" method="get" action="Text" >
<input type="checkbox" dir="rtl" ID="CheckBox2" value="check" onclick="All(this,'all','_chk');">
</td>
<td> <input type="submit" name="delete" value="حذف"></td>
</tr><p>
<div align="center">
[code]....
I have to do feet to meters code. here is the question. Write a Java program that reads a number in feet, converts the number to meters and displays the result. One foot is 0.305 meters.
here is my code :
import java.io.*;
class FeetToMeters
{
public static void main (String[] args) throws IOException
{
InputStreamReader inStream = new InputStreamReader (System.in);
BufferedReader stdin = new BufferedReader (inStream);
[Code] ....
I have seen alot of people use the scanner tool for the start of it but we never learned it as it is an online course but we may end up learning it farther on in our java programming. we have just started with the input and output stuff.
I am trying display the result set from the database.I am getting the following exception :
Caused by: javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach>
at org.apache.taglibs.standard.tag.common.core.ForEachSupport.toForEachIterator(ForEachSupport.java:286)
My Jsp code :
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code] ....
I have a problem with my code,in fact I can't output the stream from console to my jTextarea,this is my code:
public class AudioFrame extends javax.swing.JFrame {
static double[] audioFile;
static String audioToDecode;
static String audioKey;
static String outputName;
static String outAudio;
static String name;
static int command;
static String textToEncode;
[Code]...
When I am invoking a servlet class file from my HTML file instead of displaying output in my browser it is downloading my output as a file..Why it is?..
View Replies View RelatedI'm currently working on a program that is supposed to translate morse code and then display the result and I'm stuck, my program has tons of errors when I try to compile.
public class Assignment10
{
public static void main ( String [] args )
{
String str = Input.getString("Please type in a word");
char [] letters = {'a','b','c','d','e','f','g',
[Code] .....
I need to create a simply application that would display the results of two dice thrown five times and the total of those results. This is shown below in the attached file.
The problem is, I have a do-while loop that loops 6 times. Inside the loop, I have 2 random.nextInt(5) that generate random numbers. But how can I output the total? How can I make a variable equal to the sum of the two random numbers if the two random numbers are located inside a do-while loop?
Attached below is also the code I have thus far.
(Attached below is both files: what it needs to look like, and what it currently looks like)
Write a program that will read two numbers and an integer code from the keyboard. The value of the integer code should 1, 2, 3, 4. If the value of the code is 1, compute the sum of the two numbers. If the code is 2, compute the difference (first number minus second). If the code is 3, compute the product of the two numbers. If the code is 4, and the second number is zero, compute the quotient (first divided by second). If the code is not equal to 1,2,3,4, display an error message. The program is then to display two numbers, the integer code and the computed result to the screen
here is the code that I have so far:
public static void main(String[] args) {
Scanner read = new Scanner (System.in);
int num1, num2, code, sum;
System.out.println("Please enter a number");
num1 = read.nextInt();
[Code] .....
I need to write a simple program that displays up to 5 pairings of data types (int, string) (string, long) ect. I need to have at least two classes, a Pair class (generic) and an PairTest class.
View Replies View RelatedI have a java program which would display a message dialog box. The problem is it would stopped working before even displaying the message dialog box. This is my code.
import javax.swing.JOptionPane;
public class HelloDialog {
public static void main(String [] args) {
JOptionPane.showMessageDialog(null, "Hello World!");
}
}
There is a pop-up window which would say "Java(TM) Platform SE binary has stopped working." I am using textpad. What should I do with this?
I want to write a java program which displays to get the GPA of a student as a keyboard input. Then display the class of the degree according to the following criteria using a switch-case statement (if-else statements cannot be used). If the user insert an invalid gpa you should display a message Invalid GPA.
gpa ≥ 3.50 First Class Hons
3.49 ≥ gpa ≥ 3.00 Upper Second Class Hons
2.99 ≥ gpa ≥ 2.50 Lower Second Class Hons
2.49 ≥ gpa ≥ 2.00 Pass
2.00 ≥ gpa Fail
Here is my code:
import java.io.*;
public class q7
{
public static void main(String[] args)
{
InputStreamReader ISR=new InputStreamReader(System.in);
BufferedReader BR=new BufferedReader(ISR);
[code]...
.But when I use Command console to run this it says: 1111.jpg. I also wanna know is there another way to do this with switch- case statements.
public class PasswordGen {
public static void main (String[] args) {
Generator();
}
public static void Generator() {
char[] alphabet = "abcdefghijklmnopqrstuvwxyz".toCharArray();
[Code] ....
I'm trying to make a random password generator, but it isn't as random as I'd like it to be. I have set places where either a number, letter or symbol can go. I'd like to randomise the placement of these set types in the output from "symbol + letter + number + letter etc" to "? + ? + ?". Sample output from this code:
@W1L5m8%j4
^Y2L8z4@d1
£D6X5i3^i8
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;
[Code] .....
Four experiments are performed, each consisting of six tests. The number of test results for each experiment is entered by the user. Write a Java program using a nested loop to compute and display the average of the test results for each experiment.
You can run the program by entering the following test results:
Experiment 1 results:23.231.516.927.525.428.6
Experiment 2 results:34.845.227.936.833.439.4
Experiment 3 results:19.416.810.220.818.913.4
Experiment 4 results:36.939.549.245.142.750.6
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');
The end result is when I print the total it comes out to be 0. Trying to solve this
package pay;
import java.util.*;
public class manager
{
public manager(String string, int i, String type) {
[Code] ......
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)
[Code] ....
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?
I have following code
int id1=1;
String city1="Dehradun";
float rupee1=2.1f;
double salary1=2.123;
[code]....
But when i again view it using datainputstream it display original Values.how to view correct data written from outputstream as it is in textpad file
on my note pad the 00 means that it is an excused absent while 0 is the unexcused:this one is the readfile saved on .txt
Bruce Wayne
9 9 00 19 49
10 0 10 9 9
90
50
87 87
some of the code:
if (inFile.next() == 00){
System.out.print("student has an excused absent how would you like to proceed");
}else{
grade = inFile.nextDouble();
qsum += grade;
I'm new to this java stuff and when I go to notepad++ and this keeps coming up when I try to compile it: "Error: Could not find or load main class HelloWorld" what it means...
View Replies View RelatedI have some troubles rendering images to the printer, any resolution does not work, even 72 in PDF printer does not work, the image is crappy.
I use the following code but the result is not good. I mean the image quality is not acceptable.
img=new ImageIcon("c:\test\m.jpg").getImage();
scale=72/300d;
g.scale(scale,scale);
g.drawImage(img, 0, 0, (int) (img.getWidth(null)/scale), (int) (img.getHeight(null)/scale), null);
I've also tried :
img=new ImageIcon("c:\test\m.jpg").getImage();
AffineTransform aft=g.getTransform();
double scale=aft.getScaleX();
g.scale(scale,scale);
g.drawImage(img, 0, 0, (int) (img.getWidth(null)/scale), (int) (img.getHeight(null)/scale), null);
The result is the same even if I change the image, very poor and unacceptable!
I am using java process to start a system command in windows
Runtime r = Runtime.getRuntime();
Process pr = r.exec(cmdString);
I want to get the prompt out put from cmdString = "cmd /c type fileSmallSize"->>>> It is ok the have the content of the file when file is small.
However, for a large file java process will hang and no Exception occurred, what is the problem?
The easiest testing you can try on the logging.properties file in java.
public static String executeCmdAndReturnPromptResult(String cmdString)
throws Exception {
LOGGER.entering(CLASSNAME,
"Entering executeCmdAndReturnPromptResult()", cmdString);
String cmd = cmdString;
[Code] ....
It seemed to me that the bufferSize is limited so that I can only have it less than a default one, how to increase it?
My question now is how to increase the size of buffer in order to read a larger InputStream ?
BufferedInputStream() default size is
private static int defaultCharBufferSize = 8192;
private static int defaultExpectedLineLength = 80;
How to make it larger and working? I tried to increase the defaultCharBufferSize to 500000000 but it did not work!