How to create an array of strings in C?

word_array[0] is a char, whereas word1 is a char *. Your character is not able to hold an address. An array of strings might look like it: If you rather want an array of pointers to your strings: And then: Maybe you should read this.

what is Ljava.lang.String;@

The method works if you provide an array. The output of is (the number after @ is almost always different) Please tell us the return type of Employee.getSelectCancel()

Sort array of objects by object fields

Use usort, here’s an example adapted from the manual: You can also use any callable as the second argument. Here are some examples: Using anonymous functions (from PHP 5.3) usort($your_data, function($a, $b) {return strcmp($a->name, $b->name);}); From inside a class usort($your_data, array($this, “cmp”)); // “cmp” should be a method in the class Using arrow functions (from PHP 7.4) usort($your_data, fn($a, $b) => strcmp($a->name, … Read more

How to properly malloc for array of struct in C

Allocating works the same for all types. If you need to allocate an array of line structs, you do that with: In your code, you were allocating an array that had the appropriate size for line pointers, not for line structs. Also note that there is no reason to cast the return value of malloc(). Note that’s it’s better style to use: … Read more

Array to Hash Ruby

That’s it. The * is called the splat operator. One caveat per @Mike Lewis (in the comments): “Be very careful with this. Ruby expands splats on the stack. If you do this with a large dataset, expect to blow out your stack.” So, for most general use cases this method is great, but use a different method if you … Read more

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