Why can’t we pass arrays to function by value?

The origin is historical. The problem is that the rule “arrays decay into pointers, when passed to a function” is simple. Copying arrays would be kind of complicated and not very clear, since the behavior would change for different parameters and different function declarations. Note that you can still do an indirect pass by value:

How to empty a char array?

using in general if the array is in scope, or if you only have the pointer value, and nMembers is the number of elements in the array. EDIT Of course, now the requirement has changed from the generic task of clearing an array to purely resetting a string, memset is overkill and just zeroing the first element … Read more

(Java) Tic-Tac-Toe game using 2 dimensional Array

First off: This will create a infinite loop because row and column shouldn’t change you should ask for new input! Also As soon you hit ‘O’ or ‘X’ you will exit the Method with a false (no winner) What you probably want to check is if every spot is occupied This would now check if there is a winner … Read more

Initializing array of structures

There’s no “step-by-step” here. When initialization is performed with constant expressions, the process is essentially performed at compile time. Of course, if the array is declared as a local object, it is allocated locally and initialized at run-time, but that can be still thought of as a single-step process that cannot be meaningfully subdivided. Designated … Read more

Java Array Sort descending?

You could use this to sort all kind of Objects Arrays.sort() cannot be used directly to sort primitive arrays in descending order. If you try to call the Arrays.sort() method by passing reverse Comparator defined by Collections.reverseOrder() , it will throw the error no suitable method found for sort(int[],comparator) That will work fine with ‘Array of Objects’ such as Integer … Read more

How to print the data in byte array as characters?

Well if you’re happy printing it in decimal, you could just make it positive by masking: If you’re printing out a hash though, it would be more conventional to use hex. There are plenty of other questions on Stack Overflow addressing converting binary data to a hex string in Java.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)