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How to obtain a part of a 2d array?

java,arrays,matrix,dimensional

I would use System.lang.arrayCopy: import java.util.Arrays; public class ArrayRange { public static void main(String[] args) { char[][] original = createMatrix(4); // copy 3x3 array starting at 1,0 char[][] subArray = copySubrange(original, 1, 0, 3, 3); printArray(original); printArray(subArray); } private static char[][] copySubrange(char[][] source, int x, int y, int width, int...

How to iterate multi dimensional array and calculate sum for each row in php?

php,arrays,loops,foreach,dimensional

When you do this loop: foreach($array as $cases) { if($cases['allergies'] == $_POST['allergies']){ $count = 1; } if($cases['vege'] == $_POST['vege']){ $count1 = 1; } if($cases['bmi'] == $bmi2) $count2 = 1; if($cases['age'] == $age2) $count3 = 1; $sum = $count + $count1 + $count2 + $count3; echo $sum; } You are not...

view php 2nd array in table

php,arrays,dimensional

Your code has major problems. For once, you never close the first if. Or, indexes in the array start with 0, not 1, so you do not need $x. And I also do not understand what <?=$x?> has to be or what you mean with this. Try this: <?php $logdate...

pass a dimentional array(2D) to a function VHDL

arrays,types,vhdl,dimensional

The two arrays scanImage and double_array are not the same type; just happens to be declared the same way. So declare image_matrix with the type double_array, instead of making a new type scanImage: signal image_matrix : my_pack.double_array; Then you can use my_pack.square_calculation with the image_matrix argument....

3 Dimensional map

maps,bukkit,dimensional

You are getting that error because HashMap.put() does not return anything in an empty map. If you want to fix this, instead of using: messages .put( lang, new HashMap<String, String>() .put( mes, PluginBase.plugin.messagesConfigs.get(lang).getString(mes) ) ); You should use: Map<String, String> message = new HashMap<String, String>(); message.put(mes, PluginBase.plugin.messagesConfigs.get(lang).getString(mes)); messages.put(lang, message); ...