multidimensional-array

问题 The array has objects from different subclasses. How can I print the objects according to there subclasses? I used scanner to read student (Graduate and Undergraduate) objects and put into an array. I need to use inheritance and toString methods to get the results. Original data in txt file: G Steve 23 Biology U Julia 19 Music Flute, year: Sophomore G David 25 Math I was able to read and print the objects but only in original order: Graduate Name:Steve, Age: 23, Major: Biology Undergraduate

问题 I'm trying to to compute pressure tensor of a crystal structure. To do so, I have to go throught all pair of particle like in the simplify code below do i=1, atom_number ! sum over atoms i type1 = ATOMS(i) do nj=POINT(i), POINT(i+1)-1 ! sum over atoms j of i's atoms list j = LIST(nj) type2 = ATOMS(j) call get_ff_param(type1,type2,Aab,Bab,Cab,Dab) call distance_sqr2(i,j,r,VECT_R) call gettensor_rij(i,j,T) r = sqrt(r) if (r<coub_cutoff) then local_sum_real(id+1) = local_sum_real(id+1) + ( erfc

问题 I have an array like this : [input] => Array ( [0] => Array ( [val1] => 111 [val2] => 222 [val3] => 333 [day] => 444 ) [1] => Array ( [val1] => 111 [val2] => 221 [val3] => 333 [day] => 444 ) [2] => Array ( [val1] => 111 [val2] => 223 [val3] => 333 [day] => 444 ) [3] => Array ( [val1] => 111 [val2] => 224 [val3] => 333 [day] => 444 ) [4] => Array ( [val1] => 111 [val2] => 222 [val3] => 333 [day] => 444 ) ) I only want to check if the first 2 value (val1 and val2) in an array are identical to

问题 I have the following array (which contains results of multiple database queries - in the example only 2 but can be more. The merging needs to be done by a specified column (in this case the date column). Let's call this merge_by column. Array ( [0] => Array ( [0] => Array ( [date] => 2011-01-17 [col-1] => 58 [col-2] => 54 ) [1] => Array ( [date] => 2011-01-19 [col-1] => 50 [col-2] => 61 ) [2] => Array ( [date] => 2011-01-20 [col-1] => 44 [col-2] => 22 ) [3] => Array ( [date] => [col-1] => 448

问题 I have an "empty" array that will be populated with data later in the code. But before it reaches that stage there's a section where the default content is copied to a temporary array, so the original can be changed and later receive the relevant data that was stored in the copy. The problem is when I use slice and delete the section in the original array, the temporary one is affected as well. var array1 = [["text", [[[1,2],[3,4],[5,6]]], 0]]; var array2 = array1[0].slice(0); //alert(array2

问题 If I had an array defined as follows in C: int B[d1][d2][d3][d4][d5][d6][d7][d8][d9]; Then it is easy to convert "B" into single dimensional one. But what if I have an array in C, which is defined as follows: int********* A; //which will be allocated as follows for example A = (int*********) malloc(N*sizeof(int********)); for(int i=0; i<N; i++) { //differentSizes will be distinct for every "i" //the same distinctness of sizes will be for every other //inner parts of all inner for loops

问题 So I am trying to export a multidimensional array from R into excel, google sheets, or some similar spreadsheet program. I would also be okay with exporting into a text file as long as it is in the format I need. I have done some web-surfing but haven't progressed too much. Note: I have some programming experience (about 4 semesters) but am relatively new to R. I am working in group with 3 others who have almost no prior programming experience. Our array is 7x100x100 (though I may have to

问题 I have a array like this, Array ( [0] => Array ( [id] => 109 [label] => c [quantity] => 12 [unit] => g ) [1] => Array ( [id] => 120 [label] => c [quantity] => 12 [unit] => g ) [2] => Array ( ) [3] => Array ( ) [4] => Array ( [id] => 119 [label] => b [quantity] => 200 [unit] => oz ) ) Array ( [0] => Array ( [id] => 118 [label] => b [quantity] => 200 [unit] => oz ) [1] => Array ( ) [2] => Array ( ) [3] => Array ( ) [4] => Array ( ) ) Array ( [0] => Array ( [id] => 121 [label] => b [quantity] =>

问题 i have multi dimensional array like below, Array ( [14289] => Array ( [0] => Ability:B,Itemname:Session #3: Tues June 28th - Fri July 8th (9-2:00PM)#1 only: 2pm [1] => Ability:B+,Itemname:Session #3: Tues June 28th - Fri July 8th (9-2:00PM)#1 only: 2pm [2] => Ability:B++,Itemname:Session #3: Tues June 28th - Fri July 8th (9-2:00PM)#1 only: 2pm ) [14279] => Array ( [0] => Ability:N/S,Itemname:Session #1: Tues May 31st - Fri June 10th (1-5:30PM)#1 only: 1pm [1] => Ability:N/S+,Itemname:Session

问题 I wrote a class that has a 2d array that grows based on user input and allows user to enter numbers in array. The user would enter 2 2 for the size and 2 4 5 4 for the numbers It would print out like this 2 2 2 2 It works until I enter an array size 7 1 , 7 rows and 1 column. I get an Exception Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1 at Assignment7.main(Assignment7.java:55) I don’t understand why import java.util.Scanner; public class Assignment7 { public static