I'm a little lost (still working with Ron Jeffries's book). Here's a simple class:
public class Model{
private String[] lines;
public void myMethod(){
...
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I am working on an assignment to create a tictactoe game using a multidimensional array, a separate class with methods to be invoked by the main class.
The array is 3 X ... |
The following alters the parameter chr and ends up matching the "swapped" 2D array. I can't see how it can change as it is not on the receiving end of any ... |
I'm having trouble assigning a value to my 2-Dimensional Array in Java. I've scoured the web and haven't found any solutions.. The line: theGrid[rowLoop][colLoop] = 'x'; (the last statement) is throwing ... |
I have the following 2d array
int [][] array = {{ 0, 1, 2, 3, 4, 5, 6, ...
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So this question is something that I have been trying to solve for a long time. I have a fairly good knowledge of Java (self-taught) however I, for whatever reason, cannot ... |
private double[][] getTimeValuePairsArray(List<Double> timeList, List<Double> valueList){
double[][] timeValuePairs = new double[2][timeList.size()];
for (int i = 0; i < timeList.size(); ++i) {
...
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I have a 2d array and I want to know how do you set the first value so if my array was
int array[a][b] = int[10][10];
How would you access index 'a' ... |
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You are nearly there. If you get array.length == 0 then you know you have an array which does actually exist, but contains 0 elements. If you have array == null as true then you have an array which doesn't exist (null). Be sure to check for null before you check 0 length, otherwise you might get a NullPointerException. |
After creating a new array object, I want to load it with constant values. Being a COBOL programmer, I would make a sequential file with the values, and read them into the array. But I don't want to do this with JAVA. My program will eventually be an applet and won't be able to read in a sequential file (it's a ... |
Welcome to JavaRanch! It sounds like your question is mostly about how to prompt for user input and then get that input. For that, check the java.util.Scanner class. For valuing elements in the multidimensional array, I expect that you will want to use a nested loop, with each loop iterating over a particular dimension of the array. (For example, an outer ... |
Hi, I have two multi dimensional array.I want to check each value in the array.If the values are not equal,I want to add them in another array and if they are equal,I want to skip that iteration and continue till the last element in the array.when Iam trying,iam not able to iterate through the array element.Can any pls let me know ... |
I have to write a program that would generate a matrix that should display the following output. They are asking that we dont hard code our values in this program. I am lost on how I will get these values to display without hard coding. My question is how should my expression look. Any information that you all can give me ... |
Kindly Help me Continue the code for this program. It should Display the sum of int myarray [][]= {{0,1,2},{1,0,3}}; int myarray1 [][]= {{1,2,3},{6,5,4}}; like 0 of myarray and 1 of myarray1. Thanks. Please Help:( /* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * * @author m303user */import java.io.*; public ... |
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hi i have a problem that may be very easy for someone to solve.. any ideas or suggestions is appreciated. ok i have created a 2d array of string type in a void method, now the problem is when i try to view this array in another class or another method in the same class i get all null values, but ... |
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Oh right. I have corrected that little mishap now and the system.out thing works, but it prints it on every single cell in the array not just [5][0]. So like [0][1], [0][2] etc all print the system.println but I've specifically told it to only do that at array value [5][0]. Edited by: Aurora88 on Feb 14, 2008 10:26 AM |
Okay yeah I had int [] [] matrix = new int [5][5]; at first and it gave me the 5 rows and 5 columns, but it displayed all zeros. I know for like the first row they counting by 2s than 3s, 4s 5s and 6. Is there sometype of expression I will use to get the numbers to display like ... |
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/* System.out.println("Please enter the first number"); BufferedReader dataIn1 = new BufferedReader (new InputStreamReader(System.in)); String num1; num1 = dataIn1.readLine(); double doub1 = Double.parseDouble(num1); System.out.println("Please enter the second number"); BufferedReader dataIn2 = new BufferedReader (new InputStreamReader (System.in)); String num2; num2 = dataIn2.readLine(); double doub2 = Double.parseDouble(num2); System.out.println("Please enter the third number"); BufferedReader dataIn3 = new BufferedReader (new InputStreamReader (System.in)); String num3; num3 = ... |
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Hi in my 2D array, I would like to store Sessions in the first array and userIDs booked in these sessions in the second array. I want to accept three booking per session and there are altogether 4 sessions. And I want to name the session as "session1", "session2" and "session3" but I don't want to assign any value for userIDs ... |
while (line != null){ int i = 0; String text = line; String [] fields = text.split( "\\s*; s*" ); // splits data file into fields while (fields.length < 3){ // this gets rid of the first 12 lines of my line = bufRead.readLine(); // file that are unnecessary data text = line; fields = text.split( "\\s*; s*" ); } |