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  • equals vs Arrays. equals in Java - Stack Overflow
    But that logic doesn't apply to arrays Arrays have data, and you expect comparison (via equals) to compare the data Ideally, the way Arrays deepEquals does, but at least the way Arrays equals does (shallow comparison of the elements) So the problem is that array (as a built-in object) does not override Object equals
  • Java Comparator class to sort arrays - Stack Overflow
    Say, we have the following 2-dimensional array: int camels[][] = new int[n][2]; How should Java Comparator class be declared to sort the arrays by their first elements in decreasing order using Ar
  • How do I declare and initialize an array in Java? - Stack Overflow
    maybe important to note that multi-dimensional arrays are actually arrays of arrays, so int[][] array = new int[2][]; is creating an array with 2 positions (that can hold an int[] array each) initialized with null (e g array[1] returns null; array[1][0] throws a NullPointerException) –
  • How do I concatenate two arrays in C#? - Stack Overflow
    @Shimmy It would not Inside this method x is but a local variable, passing x as a ref to the resize method would create a new array and alter (the local variable) x to point to it
  • How to use java. util. Arrays - Stack Overflow
    java util Arrays only exposes static methods, so you simply pass in your array and whatever other params are necessary for the particular method you are calling For instance Arrays fill(myarray,true) would fill a boolean array with the value true Here is the javadoc for java util Arrays
  • more modern way of looping through C++ arrays - Stack Overflow
    In C C++ sizeof always gives the number of bytes in the entire object, and arrays are treated as one object Note: sizeof a pointer--to the first element of an array or to a single object--gives the size of the pointer, not the object(s) pointed to
  • How do I declare an array in Python? - Stack Overflow
    @AndersonGreen As I said there's no such thing as a variable declaration in Python You would create a multidimensional list by taking an empty list and putting other lists inside it or, if the dimensions of the list are known at write-time, you could just write it as a literal like this: my_2x2_list = [[a, b], [c, d]]
  • How to store arrays in MySQL? - Stack Overflow
    That said, arrays don't map well databases which is why object-relational maps can be quite complex Historically people have stored lists arrays in MySQL by creating a table that describes them and adding each value as its own record The table may have only 2 or 3 columns, or it may contain many more
  • Sort an array in Java - Stack Overflow
    int[] sorted = Arrays stream(array) sorted() toArray(); option 1 Arrays parallelSort(array); option 2 As mentioned in doc for parallelSort : The sorting algorithm is a parallel sort-merge that breaks the array into sub-arrays that are themselves sorted and then merged
  • arrays - How can I convert int [] to Integer - Stack Overflow
    The real problem is that arrays do not override equals() to compare the elements In that sense converting to Integer[] (as your title says) does not help you In the code above, frequencies containsKey(q) would still not work as you expect because it uses equals() to compare The real solution is to not use arrays here –





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