So I'm trying to write a program that takes in 20 numbers and computes their average and I'm supposed to use a while loop to read the values and to make sure that all the numbers are positive. My while loop is set up and does all the math correctly but I have completely forgotten how to taken 20 numbers from the user all at once and then run them through the while loop.
HERE IS MY CODE SO FAR:
public static void main(String[] args) {
int num = 100;
int count = 0;
int total = 0;
while (num >= 0 && count < 20){
if (num %2 == 0){
total += num;
count++;
}
}
double avg = total/20;
System.out.println("The Result Is: " + avg);
}
I am trying to read from a file and storing them back in the file but its not working, I think the way I am reading is wrong or something. Is the for loop correct way ?
try { in = new BufferedReader(new FileReader("Events_data.txt")); for (int x = 0; x <= Events.length; x++) { tid = in.read(); te = in.readLine();
i am trying to assign unique values to nodes read from XML file.. eg: consider this XML file:
<breakfast_menu> <food> <name>Belgian Waffles</name> <price>$5.95</price> <description> ...Strong Belgian waffles...</description> <calories>650</calories>
[code]....
now assigning these nodes "a unique value" has to be done following the LSDX labelling pattern i.e:
To the document element we first give an “a”.As there is no parent node for the document element, we assign “0” at the front of that “a” . “0a” is the unique code for the document element (breakfast_menu). For the children nodes of “0a”, we continue with the next level of the XML tree which is “1” then the code of its parent node which is “a” and a concatenation “.” . We then add a letter “b” for the first child, letter “c” for the second child, “d” for the third child and so on.Unique codes for children nodes of “0a” shall be “1a.b”, “1a.c”, “1a.d”, etc.Hence foe the above given XML the mapping would look something like this:
0a breakfast_menu 1a.b food 2ab.b name 2ab.c price 2ab.d description 2ab.e calories 2ab.f chef 3abf.b chef1 3abf.c chef2 1a.c food 2ac.b name 2ac.c price 2ac.d description 2ac.e calories 2ac.f chef 3acf.b chef1 3acf.c chef2
For more samples about LSDX labelling : 1.) Section 3.1 LSDX Labelling on this link: [URL]
2.) Fig 3 on page 1189 on this link:[URL]
right now i am using SAX parser to read xml and get the nodes in their hierarchical order..now the problem is that i have to assign these specific value to their respective nodes using java.
So I'm trying to read 11 values from a text file, each value on a separate line. The first value I use as loop control to run through calculations on the other ten and finally output both the numbers and the calculations to the console and an output file. I'm not getting a compiler error or a runtime error but my loop seems to stop after reading the first line. It also doesnt seem to be writing to my output file but does create it when I run the program. This is what my text file looks like
import java.util.*; import java.io.*; public class assignment7scratch { Toolkit_General toolKit = new Toolkit_General(); public static void main (String[]args)throws IOException
[Code] .....
so I dont get an error but this is what my output looks like
----jGRASP exec: java assignment7scratch
This program reads a list of values representing number of miles driven by individuals. It will output the dollar amount their rental cars cost.
Number of miles traveled on the left as well as amount reimbursed on the right
----------------------------------------------- Miles Driven Amount reimbursed 150.427.072
----jGRASP: operation complete.
it also doesn't write anything to my output file, though it does create one.
I am trying to read numeric values from a text file into an array. This is what i have so far but when i compile it, it doesn't run and give me a result.
import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.io.PrintWriter; import java.util.Scanner; public class question2_17110538 {
You may assume that all values are positive. First figure out the maximum value. That value's bar should be drawn with 40 asterisks. Shorter bars should use proportionally fewer asterisks.
import java.util.Scanner; import java.util.ArrayList; import java.util.Arrays; public class Array717 { public static void main( String[] args )
[Code] ....
The problem is that all this code does is print 1 line of *'s and what seems to be thousands of them
The program is supposed to print all even and odd numbers between 50 and 100 using ONE while or do while loop. The evens work, but the program terminates after printing 51 for the odds, which doesn't satisfy the second value sentinel value for the while loop.
public class EvenOdd { public static void main(String args[]) { int x = 50; int y = 50; int i = 0; int j = 0; System.out.print("Even numbers between 50 and 100: ");
Write a program that creates an array that can hold 9 double values that represent baseball batting averages for a starting baseball lineup. Use a for loop to populate array with random double values in the range of 0.00 to 0.500. Recall that "double" values are what Java calls "real" numbers. Use a second for loop to print the values in the array with one number per line. Finally, use a third for loop to traverse the array and find and print the maximum batting average in the array. Note: you will need to use String.format to control the precision of a double number when you print it- Here is my code so far:
public class P2F { public static void main (String[] args) { double [] player= new double [9]; //player[0]= Math.random(); for (int index=0; index < player.length; index++) {
[Code] ....
When I open the terminal window I get different variations of this [D@4545c5]. I would like to know all the things I am doing wrong.
Write java program using table that stores celsius and farenheit values that are equal to one another using a loop. use C 0-20 and convert to farenheit.
I have to use doubles for Celsius and Fahrenheit and in the formula. I get a runtime error with the following displayed:
I will display a table of temperatures in their Celsius and Farenheit equivalents.
celsiusfarenheit
import java.util.*; import java.lang.*; import java.io.*; class TemperatureConversion { public static void main (String[] args) throws java.lang.Exception { double celsius;// Temperature in degrees Celsius minimum double farenheit;// Temperature in degrees Fahrenheit
I have used netbeans to build my app. So there creating jTable is out of my control as that part was inside auto-generated code. I have just used the jTable.setValue().
My problem is, above method is inside a button click event. Updated values not displaying until the loops ends.
Started learning about Array's I'm doing an exercise where you create a for loop that randomly assigns values to each element within the array, but where is my code going wrong?
import java.util.Scanner; public class ArrayExamples{ public static void main(String[] args) { Scanner input = new Scanner(System.in); double exampleArray[] = new double[5]; System.out.print("Enter a Number: "); int num1 = input.nextInt();
I had to write a foor loop to count the values of a stack of quarters from 1.00 to 3.00 and I had to print the values, that I understood and got it working so I taught the next assignment was going to be easier but I am having a hard time with it. For this one I have to write a for loop to print all the positive integer factors of 144 and I am supposed to print of factor per line but I tried doing that but it doesn't work it just prints out 144.
This is my code. The quarter assignment is also in there because it is part of a lab so just ignore that part since it is working correctly.
public class ForLoopPractice { public static void main(String [] args) { // Write a for loop to count out the values of a stack of quarters from $1.00 to $3.00 // Print the value of each iteration. Print this all on one line, rounded to the nearest cent. // To print rounded, use printf, with a placeholder of %.2f // (%f is the floating-point placeholder; the .2 indicates the number of decimal places) /* YOUR CODE HERE */ for (double q = 1.00; q <= 3.00; q += .25)
import java.util.Scanner; public class Project_5 { public static void main (String[] args) { Scanner input= new Scanner (System.in);
[code]....
So I'm attempting to have this program take the users input of integers, pressing enter in between each one. If they enter a negative number it lets them know that its invalid. At the end of the program it takes all of the valid integers entered and must add them and average them. I've put the final println in there as a placeholder. If the user types in "6" then presses enter and types in "3" , the output is:
There were 3 valid numbers entered. The sum of the valid numbers was --- and the average was ---. There were 0 invalid numbers entered.
It then continues on allowing the user to enter more values. Here is the example output for correct code"
Enter a positive value (EOF to quit): 4 Enter a positive value (EOF to quit): 7 Enter a positive value (EOF to quit): 8 Enter a positive value (EOF to quit): 2 Enter a positive value (EOF to quit): -1 The number "-1" is invalid.
Enter a positive value (EOF to quit): 8 Enter a positive value (EOF to quit): 0 Enter a positive value (EOF to quit): -4 The number "-4" is invalid.
Enter a positive value (EOF to quit): CTRL-D
There were 6 valid numbers entered. The sum of the valid numbers was 29 and the average was 4.83. There were 2 invalid numbers.
I am trying to print a loop inside an array of a greater size than the loop itself. Like for example I have an array of size 7 but it has only 3 elements.
now what I want to do is print these three numbers in a loop so that my array[3]=2;array[4]=3;array[5]=4 ...... till the last one. Also the array could be any size and not just 7.
I need a way to store the pixels values currently on the screen and compare them to the values on the first frame. Right now I'm using glreadpixels as follows:
currentBuffer= BufferTools.reserveByteData(mapSize); glReadPixels(mapStartX, mapStartY, mapWidth, mapHeight, GL_BLUE, GL_UNSIGNED_BYTE, currentBuffer); for (int i = 0; i < mapSize; i++) { if (currentBuffer.get(i) != baseBuffer.get(i)) { //Do nothing continue; } //Do something }
This works perfectly fine but turns out to be a real bottleneck, dropping the fps to a third of what it was. Is there any quicker way? All I'm after is speed, I don't even need to show it on the screen if the comparison is made "behind the scene".
Here's the code: it's while loop inside a for loop to determine the proper length of a variable:
for (int i = 0; i < num; i++) { horse[i]=new thoroughbred(); boolean propernamelength = false; while (propernamelength==false){ String name = entry.getUserInput("Enter the name of horse "
[code]....
I was just wondering what was going on here -- I've initialized the variable, so why do I get this message? (actually the carat was under the variable name inside the parentheses.
I have everything else working. My problem is that when i type "quit" to close the outer loop. It still runs the inner loop. The National Bank manager wants you to code a program that reads each clients charges to their Credit Card account and outputs the average charge per client and the overall average for the total number of clients in the Bank.
Hint: The OUTER LOOP in your program should allow the user the name of the client and end the program when the name entered is QUIT.In addition to the outer loop, you need AN INNER LOOP that will allow the user to input the clients charge to his/her account by entering one charge at a time and end inputting the charges whenever she/he enters -1 for a value. This INNER LOOP will performed the Add for all the charges entered for a client and count the number of charges entered.
After INNER LOOP ends, the program calculates an average for this student. The average is calculated by dividing the Total into the number of charges entered. The program prints the average charge for that client, adds the Total to a GrandTotal, assigns zero to the Total and counter variables before it loops back to get the grade for another client.Use DecimalFormat or NumberFormat to format the numeric output to dollar amounts.
The output of the program should something like this:
John Smith average $850.00 Maria Gonzalez average $90.67 Terry Lucas average $959.00 Mickey Mouse course average $6,050.89 National Bank client average $1,987.67
Code:
public static void main(String[] args) { Scanner scan = new Scanner(System.in); String name = ""; int charge = 0; int count = -1; int total = 1; int grandtotal = 0; int average = 0;
I have a question in mind that this is my registration form. I am sending these values from HTML form to server and database. I have question that in my case if I click next to Add Another Mobile no in HTML.then a block is genereated and each time a new name is generated.
My Question is if I click 6 times then 6 name attribute are generated. How can I send and differentiate them on my server side.
Because at their I will use something request.getAttribute("Attr_Name");
I have a JScrollPane with two coulmns. In the first column I have an image pane JTable, and in the second a list with names of sections. This second column I try to divide in two columns, one (the second column) to display the names of the sections (each row contains one name), and in the other column (the third) I want to show some values for every section in the row respectively. But, instead of displaying the desired values in the third column, I get the same names of the sections as in the second column.
How to convert this program from a while loop to a for loop.
import java.util.Scanner; public class LongDivision { public static void main(String arguments[]){ Scanner input = new Scanner(System.in); System.out.println("Enter the dividend: ");
I am trying to make a program add values from a loop. So what its supposed to do is search through tokens on an imported file. The file lists State, Capital, and then capital population. Then take the population string, turn it into numbers, and then do stuff with the numbers. First I'm supposed to find the Highest and lowest population of the places in the file (which I did without problem), but the finally thing is I'm supposed to add each found population to the last so I can find the average of the populations.
I just cannot seem to grasp how to do that. I THINK I'm supposed to some how store the given value into a variable, but how do I get that variable to add to the new value?
like...? Get token -> a b = a c = a + b
or wait no.....
Java Code :
import java.io.*; import java.util.Scanner; public class CapPopS { public static void main(String[] args) throws IOException { File stateCAP = new File("state-capital-2004population.txt"); if (!stateCAP.exists())
I'm doing an aggregation exercise that's suppose to find the volume and surface area of a cylinder. What I'm trying to do is pass values from one class, to a second class, and that second class passes values to a third class.
This may be a clearer explanation: The first class is the main program which sends values to the second and third class. The second class is used do calculations for a circle (a pre-existing class from another assignment). The third class grabs the values that the second class calculated and calculates those values with the one that was passed from the first class to the third class. The first class then prints the outcome.
Problem is when the program gets to the third class, it just calculates the value from the first class with the default constructor from the second class. It's like the second class never received the values from the first class. I think I'm missing a step, but I don't what it is.
First Class:
package circle; import java.util.Scanner; public class CylinderInput { static Scanner in = new Scanner(System.in); public static void main(String[] args) { //user defined variable
