How to hashMap an array in Java?
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I declared LinkedHashMap<String, float[]> and now I want to convert float[] values into double[][]. I am using following code. LinkedHashMap<String, float[]> fData; double data[][] = null; Iterator<String> iter = fData.keySet().iterator(); int i = 0; while (iter.hasNext()) { faName = iter.next(); tValue = fData.get(faName); //data = new double[fData.size()][tValue.length]; for (int j = 0; j < tValue.length; j++) { data[i][j] = tValue[j]; } i++; } When I try to print data...
Answer:
Try this: LinkedHashMap<String, float[]> fData; double data[][] = new double[fData.size()][];...
Tweety at Stack Overflow Mark as irrelevant Undo
Other solutions
question is: The maximum-valued element of an integer-valued array can be recursively calculated as follows: If the array has a single element, that is its maximum (note that a zero-sized array has no maximum) Otherwise, compare the first element with...
Answer:
This method does what the hint says: it compares the first element to the last, and then moves that...
Ian at Yahoo! Answers Mark as irrelevant Undo
can someone help me? create a java program (using either the scanner and console or the joptionpane class with input and message dialog boxes) that will make an array of five items for sale in a grocery store and a second, parallel array holding their...
Answer:
This isn't what you wanted, but I thought I'd have some fun, because in real life people use map for...
Xing Lin at Yahoo! Answers Mark as irrelevant Undo
create a java program (using either the scanner and console or the joptionpane class with input and message dialog boxes) that will make an array of five items for sale in a grocery store and a second, parallel array holding their prices. when the user...
Answer:
http://ideone.com/5mHb8 <-JOptionPanes don't work on ideone so copy paste it to run it on your machine...
Xing Lin at Yahoo! Answers Mark as irrelevant Undo
I'm new to HashMaps, and I hae read up on them and looked at videos online but i'm still stuck so any comments would be greatly appreciated :) private HashMap<LibraryItem, LibraryUser> myMap; (First of all, i'm not sure if this is correct. I want...
Answer:
Do it like this : Map<LibraryItem,LibraryUser> myMap = new HashMap<LibraryItem,LibraryUser...
Aahmed at Yahoo! Answers Mark as irrelevant Undo
Hello, i am trying to gather user input and store inside an array, which then adds the points of the array together. With this total i then want to subtract the total from another int (budget). Any Suggestions? I keep getting the result budget - the...
Answer:
First off, this line is wrong: int sum = budget-num; That just means budget-number of bills. You're...
Paul at Yahoo! Answers Mark as irrelevant Undo
Hi I'm stuck. I want to add the contents in index 4 of array 1 into index 0 of array 2 then add the contents of index 4+32 in array 1 to index 1 of array 2 and so forth. The index 6 array 1 into index 2 in array 2. I have tried everything including converting...
Answer:
If I understand the question correctly, you're copying exactly 4 elements into array2, correct? So why...
alf shoemanuer at Yahoo! Answers Mark as irrelevant Undo
I have to display array integers, to where the user inputs one, it searches the arrays for it, and lists whether it finds it or not. This is what the output has to look like. The x array values are: x[0] is 10 x[1] is 20 x[2] is 30 x[3] is 40 x[4] is...
Answer:
Not sure I understand what kind of output they are looking for when they say the loop executed 5 times...
xotreyfl... at Yahoo! Answers Mark as irrelevant Undo
import java.util.Scanner; public class Credit{ public static void main(String[]args){ System.out.println("Enter Credit card nomber,please"); long N=0; Scanner Nomber=new Scanner (System.in); N=Nomber.nextLong(); //i read it here as long nomber...
Answer:
import java.util.Scanner; public class Credit{ public static void main(String[]args){ System.out.println...
Omar Shamali at Yahoo! Answers Mark as irrelevant Undo
I making a program that uses a multi dimensional array. Its a program where you can input a student's adress, ID number and name(first multi dimensional array) and a student's prelim, midterm and final grade(second multi dimensional array). Our instructor...
Answer:
make first entry the id number, the second entry a 2-dimensional array. thus for instance for 4 entries...
gjmb1960 at Yahoo! Answers Mark as irrelevant Undo
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