You try to instantiate an object of the Friends class like this: The class does not have a constructor that takes parameters. You should either add the constructor, or create the object using the constructor that does exist and then use the set-methods. For example, instead of the above:
undefined method `[]’ for nil:NilClass says you tried to do something[index] but something is nil. Ruby won’t let you use nil as an array (ie. call the [] method on it). The problem is not on the attributs.each line but on the line following which calls the [] method on attribut. This indicates something in … Read more
I am trying to read a *.csv-file. The *.csv-file consist of two columns separated by semicolon (“;“). I am able to read the *.csv-file using StreamReader and able to separate each line by using the Split() function. I want to store each column into a separate array and then display it. Is it possible to … Read more
I have one string ie “[1,2]” is like a single string How do convert this arr to int array in java
You can’t initialise revS in that manner, you need a very specific thing to the right of the =. From C11 6.7.9 Initialization /14, /16: 14/ An array of character type may be initialized by a character string literal or UTF−8 string literal, optionally enclosed in braces. Successive bytes of the string literal (including the … Read more
Because of how generics in Java work, you cannot directly create an array of a generic type (such as Map<String, Object>[]). Instead, you create an array of the raw type (Map[]) and cast it to Map<String, Object>[]. This will cause an unavoidable (but suppressible) compiler warning. This should work for what you need: You may … Read more
&arr gives an array pointer, a special pointer type int(*)[5] which points at the array as whole. arr, when written in an expression such a int *q = arr;, “decays” into a pointer to the first element. Completely equivalent to int *q = &arr[0]; In the first case you try to assign a int(*)[5] to … Read more
Use Array.prototype.sort(), eg The sort() method accepts a comparator function. This function accepts two arguments (both presumably of the same type) and it’s job is to determine which of the two comes first. It does this by returning an integer Negative (less-than zero): The first argument comes first Positive (greater-than zero): The second argument comes first Zero: The arguments are considered … Read more
Use the arrays’ size attribute instead: You also probably want to use numpy.fromstring to take and convert the input string into an array:
Because you can’t assign to arrays — they’re not modifiable l-values. Use strcpy: And you’re also writing off the end of your array, as Kedar already pointed out.