I know how to do it normally, but I could swear that you could fill out out like a[0] = {0,0,0,0}; How do you do it that way? I did try ... |
I think I'm running into an inheritance conceptual wall with my Java arrays. I'm kind of new to Java so please tell me if I have things upside down. In essence, ... |
I'm trying to fill an array with words inputted by user. Each word must be one letter longer than previous and one letter shorter than next one. Their length is equal ... |
I am kinda new to this, but I am trying to fill an array from a sql statement that pulls several permit numbers from a table.
So in the table every ... |
How to fill a multidimensional array?
int[][] array = new int[4][6];
Arrays.fill(array, 0);
I tried it, but it doesn't work.
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protected String[] getImages(int max, String imageId) {
String[] images = new String[max];
for (int i = 0; i < max; i++) {
...
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I'm trying to figure out if there's someway for me to dynamically fill an array of objects within a class, without using array initialization. I'd really like to avoid filling the ... |
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I'm using the following statement in Java:
Arrays.fill(mynewArray, oldArray.Length, size, -1);
Please suggest the C# equivalent.
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hi ive got a public array of ints and i want to store 1 or 2 in the array but im getting the error NullPointerException what im doing is this
...
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The Idea is to create a method that is static that will calculate the average salary for a partially-filled array. Assume that numEmployees holds the number of elements in the array ... |
I'm not sure what your annualIntRt array look like but I see one big flaw in your design. An array is not bottomless, unless you know exactly how many lines there ... |
Hi, I am trying to pass the file input for the excel.txt file to an array for a college project. The code I have so far is below. I can get it to read the file but get lost when trying to pass it to an array. It should also be able to read each line of the text file and ... |
How do I: Reads two integers that are <= 20 digits long. Read digits as values of type char so that 1234 reads as '1', '2' etc. After they are read into the program, the characters are changeds to values of type int. should be read in a partially filled array. [Bear edit: can't abide all uppercase] [ October 06, 2006: ... |
the following code gets me stuck in an infinite loop, not sure why. while(input.hasNext()) { for(int i = 0; i < maze.length; i++) { for(int x = 0; x < maze[i].length; x++) { String insert = input.nextLine(); maze[i][x] = insert.charAt(x); } } } What I'm trying to do is read the characters on the line and fill them in the maze[][] ... |
HI, I'm working on a little practice applet to display numbers as a series of little boxes - like a 4 X 5 group of led's. So I want to write a Convert method which will take in a digit as an int and then fill an array previously delcared but empty ( 0's) using a switch like this: int[] squares ... |
Kri, You don't pass an array to another class using Arrays.fill(). You pass an array as a parameter in a method. Example: public class A { public void myMethod(String[] theArray) { if (theArray.length > 0) { // whatever } } public class B { public static void main(String[] args) { A a = new A(); String[] myArray = {"foo", "bar"}; a.myMethod(myArray); ... |
Is there a way to automatically fill an array with int values? Is there a way to do this? I am doing an assignment on programming search alogrithms and reporting the comparisons made for binary and sequential searches. The assignment calls for an array of 1000 elements. I want to fill it with ints 1-1000 in order. Any direction to more ... |
I am trying to write the test code in Main and don't understand how to fill my array with the methods we are supposed to use. Thanks in advance. public class DoubleArraySeq implements Cloneable { // Invariant of the DoubleArraySeq class: // 1. The number of elements in the seqeunces is in the instance variable // manyItems. // 2. For an ... |
Im trying to take a read a text fille containing a coded message and put the letter into an array(alphabetically). I have spent two weeks and 5 different ways of approaching the problem but no luck. I was hoping someone could help. my text book is only good for using console.next but since it is from a file that is useless ... |
I don't think there is such a method, I am afraid. An array has a fixed length. There is a potential workaround; the elements of an array are a bit like instance fields in that they have default values; booleans default to false, numbers default to 0 (or 0L 0d or 0f) and reference types default to null. You can iterate ... |
Hello, I'm having trouble printing filled elements of the array. The user fills in CD information in text fields and every time they click "Update" it is supposed to record the input to the console. I am using a GUI which is predefined with 100 elements. But in case I only fill out so many, like 10, I only want to ... |
Hi everyone, Hopefully this is just something simple that I'm missing... I've got a JComboBox that another one depends on to fill its choices. I'm filling the latter by checking the 9th character in a part number and if the 9th character is the same as the one selected (in the first combo box) it grabs them from an array containing ... |
i'm a noob so i'm only guessing but you will probably need 2 for loops. one to check the card and one to check the face you then assign the .. god i dunno how to explain it.. deck[i] = faces[random something] but you will need to loop through the cards and the suits. you will also need to check if ... |
I'm trying to program tetris, as I don't have that much experience I'm thinking of starting primitively. My Idea is a board(which is an array) filled with blanks and figure square(for the time being, there is only one figure square which contains of 1 block of 50x50) put in a loop refreshing the y coord of the figure square +1. I ... |
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There is my problem: In the sport of diving, seven judges award a score between 0 and 10, where each score may be a floating point value. The highest and lowest scores are thrown out and the remaining scores are added together. The sum is then multiplied by the degree of difficulty for that dive. The degree of difficulty ranges from ... |
Java Code: import java.awt.*; import javax.swing.*; import javax.swing.border.*; import java.util.Scanner; import java.awt.event.*; import javax.swing.JOptionPane; public class Final extends JFrame { private int numberOfStudents; private int quizesPerStudent; private int[][] data = new int[numberOfStudents][quizesPerStudent]; private int data1[]; private int data2[]; public Final() { // CREATES BUTTONS JPanel p1 = new JPanel(new FlowLayout(FlowLayout.CENTER, 15, 10)); JButton Help = new JButton("HELP"); JButton SetP = new ... |
Hi, I'm new to the forum and the online university I go to has fill in missing code type assignments. I've spent a ton of hours this week trying to learn arrays and how they work, but I'm stuck on the first part of our assignment and am not sure what code to fill it in with. Any help and explanation ... |
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For HW, I have to write a deleteRepeats static method for an array of characters that deletes any character previously listed and returns the new array size. The example the problem gives is: char a[10]; a[0]='a'; a[1]='b'; a[2]='a'; a[3]='c'; int size = 4; size = deleteRepeats(a, size); The problem then says after the code is executed, a[0] should be 'a', a[1] ... |
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given an array of primitive type, let`s say "int" how can I check for it - i mean is there an instanceof (of what?) possible? I need this in order to fill the array. That's the second part of my question: I know the java.util.Arrays class and its fill methods. But the problem is that it seems not to work until ... |
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In plain English explain what it is you are trying to do. I really do not understand but going by your code this is what will happen. nextInt(1) returns 0 stored in pos 1 nextInt(2) returns 0 or 1 stored in pos 2 nextInt(3) returns 0,10r 2 stored in pos 3 nextInt(4) returns 0,1,2 or 3 stored in pos 4 etc ... |
You're welcome. I'm glad it's running as you expect. In general there's a problem if code is indented with tabs: both because these can be rather large when displayed in a web context, and because editors sometimes mix tabs and spaces which means things don't line up on a web page the way they do in your editor. Each editor is ... |
Stevilo krogcev (numberOfCircles): 5 Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 at RisalnaPlosca.napolniHSB(BarvnaPaleta.java:76) //"napolniHSB" == fillHSB (it's a method) at RisalnaPlosca.paintComponent(BarvnaPaleta.java:53) at javax.swing.JComponent.paint(Unknown Source) at javax.swing.JComponent.paintChildren(Unknown Source) at javax.swing.JComponent.paint(Unknown Source) at javax.swing.JComponent.paintChildren(Unknown Source) at javax.swing.JComponent.paint(Unknown Source) at javax.swing.JLayeredPane.paint(Unknown Source) at javax.swing.JComponent.paintChildren(Unknown Source) at javax.swing.JComponent.paintToOffscreen(Unknown Source) at javax.swing.BufferStrategyPaintManager.paint(Unknown Source) at javax.swing.RepaintManager.paint(Unknown Source) at javax.swing.JComponent.paint(Unknown Source) at java.awt.GraphicsCallback$PaintCallback.run(Unknown Source) at sun.awt.SunGraphicsCallback.runOneComponent(Unknown Source) at sun.awt.SunGraphicsCallback.runComponents(Unknown ... |
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Arrays can only hold Objects (ints, double are not objects they are primitives). If you have several different types in an array you have to make the array type the super class of all the different Objects - which usually is just Object. Object[] myArray = new Object[]{ new Point(), new Double(), new String{} } |
public void startElement(String uri,String localName,String qName, Attributes attributes) { if( qName.equals( "RE" ) ) { testCollectionList = new ArrayList(); } else if( qName.equals( "p") ) { boolean isConcatenated = new Boolean( attributes.getValue( "c" ) ); boolean isStatic = new Boolean( attributes.getValue( "s" ) ); protocol = new Protocol( isConcatenated, isStatic ); } else if( qName.equals( "trdl" ) ) { trainingDirList = ... |
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