I am working on my homework, and everything is fine. But I was wondering if I can fix one thing. basically it prompt from a user for a text file name and save the content as an array. some part of my code is here:
public class arraysort{
static BufferedReader kb = new BufferedReader(new InputStreamReader(System.in));
public static void main(String[] args) throws Exception {
System.out.print("Enter the first name of the file: ");
String input = kb.readLine();
int[] firstArray = readFile(input);
firstArray = bubbleSort(firstArray);
Basically it prompt from a user for a text file name and save the content as an array. some part of my code is here:
public class arraysort{ static BufferedReader kb = new BufferedReader(new InputStreamReader(System.in)); public static void main(String[] args) throws Exception { System.out.print("Enter the first name of the file: "); String input = kb.readLine();
[Code] ....
As you you may figure, it works if I put numbers separated by each lines. I was wondering if I can change it so that it works when I put numbers separated by space rather then each lines.
The first line is the number of test cases and the second line is the corresponding values for the test cases. Java code for taking multiple inputs in the single line separated by a space.
I've just written a program that generates 100 numbers that range from 0 ~ 25 using arrays, the program calls another method that sorts the even numbers into a separate array and returns the array. I need it to display both arrays, however, when I run my program, the numbers of both arrays are mixed together, and I'm not sure how to separate them.
[ public class Array1 { public static void main(String[] args) { int array [ ] = new int[100]; for (int i = 0; i < array.length; i++) { array[i] = (int) (Math.random() * 26);
In c++, I'm aware that you can use the ignore function to ignore numbers after space, but in string how do I ignore a number after space is found for instance, "109 33" how would I ignore 33?
The question is Write a program that displays all the numbers from 100 to 1000, ten per line, that are divisible by 5 and 6. and separated by exactly a space.
My assignment requirements are to display this in Dialog Box / message box . I have written this code so far
import javax.swing.JOptionPane; public class Exercise04_10 { public static void main(String[] args) { int count = 1; for (int i = 100; i <= 1000; i++) if (i % 5 == 0 && i % 6 == 0)
Code below. I am not sure if my logic is correct. I want to prompt a user to enter registration numbers from 100 to 1000, store the numbers in an array then sort them.
import java.util.Scanner; class regnumber { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("registration number ", 100,1000);
I am trying to code a program that orders 5 random numbers from high to low with the basic coding i know (im starting to learn theory of methods... so you can imagine) When i run the code i cant get all 5 numbers ordered but my logic says the code is right although it's pretty confusing.
I know you could code in a simpler way but first i wanna get it as it is right now. When i debug (on my own way cause i dont know how to actually use it) shows line 72 with yellow color.
public class NuevaCalculadora { import java.util.Scanner; public static void main(String[] args) {
I'm supposed to write a program, which reads float numbers from a file, puts them in an array and sorts the array. After that I'm suppose to add the numbers so that when I add the 1 and 2 number of the array, I'm suppose to save the sum on the position of number 1, then I add number 3 and 4 and save the sum on position 2 etc. Also if my array has an uneven number of floats it's suppose to add the last 3 and not 2 numbers in the last iteration. The problem is the method throws an ArrayOutOfBounds Exception but I can't seem to find my mistake.
That's the second method. The first one just stores the sum in another variable and then returns it. Also is there a way in that I can Scanner/File/array etc. and initialize the array only once so I don't write the same code two times like it is now.
package sumOfFloats;
import java.io.File; import java.io.FileNotFoundException; import java.util.Arrays; import java.util.Scanner; public class SumOfFloats { public static float sumFloats() throws FileNotFoundException{
import java.util.ArrayList; import java.util.Random; public class NumSorting { public static int numOfComps = 0, numOfSwaps = 0; public static void main(String[] args)
[Code] ....
What is wrong with my code in this sorting program? It won't copy the random generated numbers to the sort method. How to get the random generated numbers to copy to the sort method. Below is what the program is displaying.
I have been assigned to write a program that has a user input random numbers then the program is to sort them in different ways. I have the coding for the different sorts but, I have an error saying that I am missing a return statement in the "Bubble" method. I am trying to return "arr[i]" in the "for loop" which gives me this error, and when I try to take the "return arr[i]" outside of the "for()" loop the error reads the it cannot locate variable "i".
import java.awt.* ; import java.awt.event.*; import javax.swing.*; public class SwingSorts extends JFrame implements ActionListener { JRadioButton bubble; JRadioButton selection;
The number of dot separated segment in front of the string may vary, but it doesn't matter since I only need to extract the last two segments from the string (int this case : 33423 and AMDAC-4). How do I do this efficiently? I need to process hundreds of thousands of these strings every day. it is guaranteed that the segments will always be separated by dots only (no whitespaces in the string)
I was working on my personal project when I realized I needed to split a string and extract 2 elements of it. The way it works is the user enters 2 numbers separated by a comma like this: 4, 8. Then I want to put the first number into a veriable called x and the next number into a variable called y. How can I do this?
I am trying for a logic that i have some emp ids as a string seperated by commas and i need the substring of emp ids as below. splitting the string as below.
public static void main(String args[]) { String empId = "1,2,3,4,5,6,7,8,9,10"; int i; int count = 9; for (i = 0; i <= count; i = i + 3) { System.out.println("Emp IDs are : " +empId); }}
Result is:
Emp IDs are : 1,2,3,4,5,6,7,8,9,10 Emp IDs are : 1,2,3,4,5,6,7,8,9,10 Emp IDs are : 1,2,3,4,5,6,7,8,9,10 Emp IDs are : 1,2,3,4,5,6,7,8,9,10
But I want the result like:
Emp IDs are : 1,2,3 Emp IDs are : 4,5,6 Emp IDs are : 7,8,9 Emp IDs are : 10
I am cleaning up print logs from an old system to be used in excel. I can get them down to each value is separated by a comma and looks like this.
TIME,1009 9/18/14,F/A RATIO,0.7590,NET AIR CNTS,66018.2,NET FLAG CNTS,50107.5,BKGROUND CNTS,61.0BW OF FLAG,49.807,DFRAC,-0.1834,ZFRAC,0.0000UP AIR TEMP,104.32,LO AIR TEMP,98.51,SOURCE TEMP,91.11,RCVR TEMP,97.95,,UP HEAD TEMP,93.89,LO HEAD TEMP,81.26
TIME,1026 9/18/14,F/A RATIO,0.7589,NET AIR CNTS,66026.3,NET FLAG CNTS,50107.4,BKGROUND CNTS,61.0BW OF FLAG,49.829,DFRAC,-0.1660,ZFRAC,0.0000UP AIR TEMP,104.93,LO AIR TEMP,98.42,SOURCE TEMP,92.65,RCVR TEMP,99.49,,UP HEAD TEMP,94.82,LO HEAD TEMP,82.23
TIME,1042 9/18/14,F/A RATIO,0.7584,NET AIR CNTS,66076.3,NET FLAG CNTS,50109.2,BKGROUND CNTS,61.0BW OF FLAG,49.955,DFRAC,-0.0652,ZFRAC,0.0000UP AIR TEMP,104.72,LO AIR TEMP,97.91,SOURCE TEMP,93.36,RCVR TEMP,99.52,,UP HEAD TEMP,95.31,LO HEAD TEMP,82.47
Where value follows its header. how can i export this to csv or excel with rows and columns?
I am trying to write a program that will take any comma separated data set and return the values in an arraylist without any commas. Like if I input "hello, world, program, java" it would output an arraylist [hello,world,program,java].
public void run(){ String line = readLine("Enter a CSV-formatted line of data: "); int lowerBound = 0; String entry = new String(""); ArrayList<String> string = new ArrayList<String>();
I have seen in some examples like URL... a good design is to have the model and the action methods in one just single bean and the model not to be a separated class but a few properties like this:
public class CustomerBean implements Serializable{ //DI via Spring CustomerBo customerBo; [b]public String name;[/b] [b]public String address;[/b] //getter and setter methods
[code]...
Some questions:
1. If you are using hibernate or any other ORM like the above example(URL...), why not to use the hibernate pojo bean directly like it represented the form instead of using properties?:
public class CustomerBean implements Serializable{ //DI via Spring CustomerBo customerBo; [b]Customer customer;[/b] //represents the properties of a form //getter and setter methods public void setCustomerBo(CustomerBo customerBo) { this.custom
2. Why is it said that JSF represents the purest MVC? Spring separates the model from the view too and Struts does too. I dont really understand it
double sum = a + b + c; System.out.printf("Sum = %d", sum);
Heres the error I'm getting
Enter three positive integers separated by spaces, then press enter: 15 20 9
Sum = Exception in thread "main" java.util.IllegalFormatConversionException: d != java.lang.Double at java.util.Formatter$FormatSpecifier.failConversion(Unknown Source) at java.util.Formatter$FormatSpecifier.printInteger(Unknown Source) at java.util.Formatter$FormatSpecifier.print(Unknown Source) at java.util.Formatter.format(Unknown Source) at java.io.PrintStream.format(Unknown Source) at java.io.PrintStream.printf(Unknown Source) at project2.main(project2.java:52)
I have an assessment for college, the part of my code that im struggling with is the part where the user enter their first name followed by a space and then their second name. I m using ---------------fullname = JOptionPane.showInputDialog("enter your firstname followed by a space then your second name " ); ------------- to capture this. the issue is if the user only enter 1 name I need to output an error. the issue is I cant find a way to tell if the user entered a second name. This is what I have so far:
public void makename() { // makes an inputbox to ask their name fullname = JOptionPane.showInputDialog("enter your firstname followed by a space then your second name " ); //separates the first and second name into 2 strings in order to make the username
[code]....
The problem is it accepts anything I type in without causing an error. What should I type in to stop this? ive tried anything but I cant find a way to tell if a surname has been entered or not.
eg.ubccdddwfreshawbgtiijhktrocbfgrtwghdddguppgrkitt. etc.
inputted from the keyboard one character at a time starting with a vowel (The vowels are a, e, i, o, and u) until a blank {spacebar} character is issued. You do not press enter after each character. Any other sequence should return an error message and a way of entering it correctly.
Having read in the list (or during the reading of the list) the program is to find the longest continuous occurrence of consonants, outputting the vowels between which this occurs and the length of this string of consonants.
{In the example above, the output would be 13ou}
Check for input errors and respond accordingly.
I have done most of it, the problem being that I don't know how to end the scan with a space so that I don't have to press enter. I have done the bit that finds the biggest amount of consonants in a row. (I'm writing in netbeans)
I have been trying to space out output on a Java console window so that I have three columns with 6 rows of data from three different arrays. The code I have so far outputs the data with no problem however the spacing between the columns is uneven. My loop so far is made up as follows
for (int i = 0; i < printVotes.length; i++) { System.out.println(printNames[i] + " " + printVotes[i] + " " + printPrecent[i] + "%"); }
As you can see I have been manually adding the space between each element of the array but this means that the space between each element is different because the size of each element is different if work out a loop that works out an even amount of space between the elements and then print this along with the elements ....
I want to cut my string from space char but i am getting exception....
Java Code:
import java.util.Scanner; import java.util.StringTokenizer; public class NameSurname { public static void main(String args[]) { Scanner sc=new Scanner(System.in); String s0,s1=null,s2 = null,s3=null; s0=sc.next();
[Code] ....
Console: Lionel andres messi Exception in thread "main" java.util.NoSuchElementException at java.util.StringTokenizer.nextToken(Unknown Source) at java.util.StringTokenizer.nextToken(Unknown Source) at com.parikshak.NameSurname.main(NameSurname.java:15) mh_sh_highlight_all('java'); I/p -O/p:
my s0=Lionel andres Messi
And I want to break it as soon as i find space and save it in s1,s2 and s3
