Program Takes A Photo And Convert To Grayscale Then To Sepia (can't Compile)
Feb 28, 2014
[ATTACH=CONFIG]27j.jpg49[/ATTACH]Hello,
I'm having the hardest time getting a program to compile. I'm beginning to think I've downloaded the incorrect version of turtle graphics. This symbol looks foreign and I'm unsure how to find a solution. I have fixed some of the errors since this last picture but I will write out my code. The program takes a photo and converts to gray scale then to sepia
import images.APImages;
import images.Pixel;
import java.util.Scanner;
public class sepia{
public static void main(String [] args){
[Code] ....
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Sep 15, 2014
I have the program working where the image is converted to grayscale but I get the following error when trying to convert from grayscale to sepia.
java:36 error: '. class' expected
red = Math.min(int(red * 1.08), 255);
java:36 error: illegal start of expression
red = Math.min(int(red * 1.08), 255);
import images.APImage;
import images.Pixel;
[Code] ....
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May 12, 2015
So I'm trying to make a simple program which takes in an argument (target) and then looks through an ArrayList of strings. If it finds a string that begins with (target) then it will return the index of that string. If it doesn't find a string which begins with (target) then it will return -1 instead.
For some reason, the program is always returning -1, rather than the index of the string within the ArrayList when there is one which matches the search criteria.
Here is the code:
public int getIndex(ArrayList<String> text, String target)
{
int i = 0;
int index = -1;
boolean found = false;
[Code].....
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Jul 8, 2014
I am trying to write a program that takes two numbers and multiplies them. I got this idea from this running conversion program
import java.util.Scanner;
public class Convert
{
public static void main (String [] args)
{
Scanner reader = new Scanner (System.in);
double farenheit;
double celsius;
[code]...
i am getting a cant find symbol for the output = (alpha*beta) line..Also, am I using the reader object correctly ? hould I create two reader objects as there are 2 inputs needed?
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Feb 20, 2014
I'm creating a program that will compile and run another java program:Lets say I have a program in directory
D:HelloWorldsrc
and compiled program will be in
D:HelloWorldin
inside src and bin is a folder hello (that's a package)
package hello;
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World");
System.out.println("Hello World");
}
}
This program will be run by another program (that's the program that I am creating).Here is the code of my program:
package runnercompiler;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
public final class RunnerCompiler {
[code]....
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Nov 17, 2014
Web based program, basically a slide show template where the user uploads a series of photos, they are dumped into the pre-fabbed template of a predetermined set of transitions in sync with music. I will set the templates to transition based on the time stamp of the beat of the music at certain intervals. The end users will be able to then create their own slide show "movie" based on the templates.
Problems I see are the syncing between the music and the images loading. Wondering if it's doable client side or if I need to have it rendered server-side.
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Apr 1, 2015
I created Myproject folder. Inside I have 3 folders:
/lib
/src
/bin
Inside src there is a .java file:
public class hello_world{
public static void main(String[] args){
System.out.println("Hi, from hello_world");
seba.st.hello_world_package test1 = new seba.st.hello_world_package();
test1.packFunc();
}
}
inside lib is a packEx.jar file which I created from this .java file:
package seba.st;
public class hello_world_package{
public void packFunc(){
System.out.println("hi from pack_func!");
}
}
I am trying to run this program from terminal with this command
javac -d bin -sourcepath src -cp lib/packEx.jar src/hello_world.java
and I get this error:
src/hello_world.java:11: error: cannot find symbol
test1.packFunc();
^
symbol: method packFunc()
location: variable test1 of type hello_world_package
1 error
What am I doing wrong ? How can I compile and run this program from terminal?
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Oct 9, 2014
import java.util.Scanner;
public class LM6Assignment
{
public static void main(String[] args)
{
Scanner inputDevice = new Scanner(System.in);
int numBooks = 0;
double onePhotoBook = 10.99;//each book cost 10.99
double costof1Book;
//mehtod calls
costof1Book = computeBill(onePhotoBook);
[Code] ....
How to code it so I can put in how many books they need and for it to show up with the amount for multiple photo books..
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May 5, 2014
trying to write a program that takes a user inputted number and converts it to a binary number.
Here's what I have:
package com.java2novice.algos;
import java.util.Scanner;
public class Converter {
static Scanner console = new Scanner(System.in);
public void printBinaryFormat(int number){
int binary = console.nextInt();
[Code]...
Bugs on:
Line 13
Line 17
Line 23
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Mar 9, 2014
I am to design a program in java that will allow a user to Input a list of your family members along with their age and state where they reside. Determine and print the average age of your family and print the names of anyone who live in Texas. I have tried but my results are wrong.
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Nov 4, 2014
I have been struggling with this program for weeks. This program is supposed to take a user's inputted odd number and then print out all prime numbers lower than that number.
public class PrimeNumber
{
Scanner scan = new Scanner(System.in);
int userNum;
String neg;
public void getUserNum()
[code]...
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Dec 23, 2014
i wrote this program:
class hellojava
{
public static void main(string[] args)
{
system.out.println("hello java");
}
}
Then i saved this file with name hellojava.java(notepad) in C drive in separate folder c:myjavaapp(not in c:java folder).
When I am compiling(with javac hellojava.java) it shows following error:
cannot find symbol public static void main(string[] args), and also says package system doesnot exists system.out.println("hello java");
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Jun 7, 2014
I have installed software Net-bean 7.4 and it's working, Now i want to compile and run individual program through command line, I mean where i can find java & javac file under the netbean software, so i am able to do this.
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Jul 14, 2014
I'm trying to draw an image in grayscale. This is my code:
Java Code:
public void paintComponent(Graphics g) {
super.paintComponent(g);
setOpaque(true);
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
Graphics g1 = image.getGraphics();
g1.drawImage(CardData.CARD_ART[cardID], 0, 0, null);
g1.dispose();
setOpaque(false);
} mh_sh_highlight_all('java');
For some reason, nothing displays.
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Feb 11, 2015
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;
[code]....
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Aug 3, 2014
I have a greyscale image with alpha. I also have a colour. I want to change that greyscale image to the colour specified, with black remaining black and white being the specified colour, and the different shades of grey between becoming the shade of the specified colour.I've got a couple of different thoughts about how to solve it myself, but I rather hope there's an easier way.
Solution one would be to use a BufferedImage and just use getRGB/setRGB excessively.The second solution would be to use the above and cache the result. Given that there can be up to 10 different colour schemes, and up to approx. 2000 different images, this can, in the end, become excessively memory-hogging (although the general case would likely be 3 colours and perhaps a hundred or two images). It would also mean I'd have to loop through all images whenever the user changes the colour.
Is there a magical third solution that can translate a greyscale image to colour on-the-fly that's fast enough to run hundreds of thousands of times per second? No code available since this is just in the thought process right now.
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May 17, 2014
I am trying to compile multiple jar files into one jar file from inside a java program. I know how to do this with shell scripts but I would rather have a universal application than one that will only run on Mac, Windows, or Linux. This is my current compiler code:
if(System.getProperty() == "Mac OS X"){
Runtime.getRuntime().exec("javac -classpath jar1.jar; jar2.jar");
}
I would then continue this on for Linux and Windows, but this limits my application.
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Nov 19, 2014
Here are the errors I am getting:
SlotMachine.java:21: error: illegal start of expression
public static void getNums(int [] slots)
^
SlotMachine.java:21: error: illegal start of expression
public static void getNums(int [] slots)
[code]....
i keep fixing small things and cannot get it to compile. Below is the original code,
import java.util.Scanner;
import java.util.Random;
public class SlotMachine
{
public static void main (String args[]) {
int userMoney;
Scanner input = new Scanner(System.in);
System.out.print("How much money to start with?
[code]....
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Apr 4, 2014
The first 4 class below are the main classes while the last class is the testing class. I got it all to compile but for whatever reason there are several runtime errors. I have spent hours trying to figure out what they are, but I was only able to eliminate a few.
import java.util.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Set;
import java.lang.*;
public class PhoneNetwork {
[Code] .....
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May 23, 2015
Netbeans do not detect any syntax errors, but I when I check the build it retuned areas they were a few; It's a simple program name 5 people, gade them then do final calulatoins it's called "grade tool.
heres the code
package gradingapplication;
import java.util.Scanner;
public class GradingApplication {
public static double score(double score){
if(score >= 90){
System.out.println("A");
[code]...
~Problems~
1. It has no gui, I don't know java fx, is java groove used? awt is useful for creating spam bots in robot class, I know it's not very useful but it's so much fun.
2. the sections where I use the scanner.
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Apr 24, 2014
Write a program that will provide temperature conversions between degrees Fahrenheit and degrees Celsius. Provide a method that will take an argument representing a temperature in Fahrenheit degrees and return the equivalent temperature in degrees Celsius. Also provide a method that will take an argument representing a temperature in degrees Celsius and return the equivalent temperature in degrees Fahrenheit. Conversion formulas are as follows: F = 9./5. * C + 32, C = 5./9. * ( F - 32 ), where F = Fahrenheit temperature and C = Celsius temperature. You must prompt for input using the Input class methods that are provided as a download for this unit.
I have two questions, 1st is why won't I get an output from my program when I run it? 2nd is how do I prompt for input using the Input class methods downloaded? The downloaded files are in .class form, and won't show any output when I run them.My code is:
import java.util.*;
public class temp
{
public static void main ( String [] args )
{
Scanner in = new Scanner(System.in);
[code]...
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Oct 13, 2014
I'm working on creating the Binary to Decimal program . hat is wrong with this part of my code. Why does it not take you into the loop.
import java.util.Scanner;
public class question5 {
public static void main(String[] args) {
System.out.println("Enter a Binary number. "); // collect
Scanner keyb = new Scanner(System.in); //
[Code] ....
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Mar 12, 2015
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
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Apr 11, 2014
I am trying to covert utf-8 encoding into CP1251 encoding. But i am getting null pointer exception.
package ProcessDefinition;
import java.util.*;
import java.io.*;
import java.lang.String;
public class Process
[Code] .....
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Jul 3, 2014
i am new to programming skills it may be silly question for experience but for me it's new thing. actually i tried a lot but i am facing problem when i trying to take input through Scanner. if i will take input a sentence directly as a string it's working . but when i am trying with Scanner the first word is showing next are not showing
public class Demo2
{
public static void main(String[] args)
{
String s1="hi how are you";
s1=s1.replace('a', 'A');
s1 =s1.replace('e', 'E');
s1 =s1.replace('i', 'I');
[Code]...
this is working properly.
but when i trying with Scanner i am facing problem.
public class Demo2
{
public static void main(String[] args)
{
java.util.Scanner scn= new java.util.Scanner(System.in)
String s1=scn.next();
s1=s1.replace('a', 'A');
[Code]...
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Sep 13, 2014
I am trying to write a program converting Fahrenheit to Celsius using a for loop. I get it to run and Fahrenheit goes to a hundred. My issue is that the Celsius just says 100 down the column and is not converting. I have tried messing with it, and can not figure what is wrong with it.
import java.util.Scanner;
public class Controlstatement {
public static void main(String[] args) {
double F = 1.0;
double Celcius = 100;
System.out.printf("%s%20s", "Farenheit", "Celcius" );
for (int Farenheit = 0; Farenheit <= 100; Farenheit++) {
F = Celcius * (Farenheit - 32 * 5.0/9.0);
System.out.printf("%4d%,20.2f", Farenheit, Celcius);
}
}
}
The output looks like this all the way to 100:
Farenheit Celcius
0 100.00
1 100.00
2 100.00
3 100.00
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