It’s a generic type, very useful in classes where the content can be of different types. A good example is List, where T specifies what types the elements in the list belong to. Sure, you can use non-generic types such as ArrayList, but that means that when you access an element in the list, you … Read more
It’s normal. When you do : $codering = [‘RF-013.12’]; Is same as : $codering = array(‘RF-013.12’); So if you try to use your array like string, php write array instead. If you wanna store [something] (a string with [] character) you need : $codering = “[something]”; If you realy need to store an array, ou … Read more
to solve questions of this type you must find a formula for spaces and a formula for stars. these formulas tell the computer how many spaces and stars must be printed in each line. that’s all these types of questions need. solved How to print the given ZIG ZAG pattern using C?
Try this : NSSortDescriptor * sortDescriptors = [[NSSortDescriptor alloc] initWithKey:@”name” ascending:YES]; // change your key here NSArray * arrSortDescriptors = [NSArray arrayWithObject:sortDescriptor]; NSArray * sortedArray = [yourArray sortedArrayUsingDescriptors:arrSortDescriptors]; NSLog(@”sortedArray %@”,sortedArray); 0 solved Sort a dictionary array when the key is given as the parameter
You have a table called reports and you are extracting a table that consists of the id, user, item_id, and created fields. This new table will only have rows that contain the max value of created for each distinct item_id. This part extracts the fields you want: select a.id, a.user, a.item_id, a.created From a table … Read more
You can use standard C function memmove. For example #include <stdio.h> #include <string.h> int main( void ) { char temp[] = “\nHello”; if (temp[0] == ‘\n’) { memmove(temp, temp + 1, strlen(temp)); } puts(temp); } 1 solved How to get rid of ‘\n’ at the beginning of string
What is the number “12” in base-12? 10 Why? The right-most digit is the ones’ digit. The next is the base, 12. The third digit, if there was one, would be 144. Repeat, this time with “5” in base-5. Once again, the second digit is the radix, 5, and the right-most digit is still the … Read more
Use the following approach inode_ptr i = NULL; auto it = directories.find(“string”); if ( it != directories.end() ) i = it->second; Maybe it is even better to write inode_ptr i = {}; instead of inode_ptr i = NULL; solved how to retrieve value from map c++ [closed]
T(n) = n log n + (n-1) log (n-1) + … + 1 log 1 + T(0) < n log n + (n-1) log n + … 1 log n + T(0) = ( n + n-1 + n-2 + … + 1) log n + T(0) = n(n+1)/2 ⋅ log n + T(0) So … Read more
Remember that + and – have the same precedence, so they are evaluated left-to-right (+ and – are both left-associative operators). So, 90 – 9 + 10 = 81 + 10 = 91. solved Why the expression in java not following BODMAS rule? [closed]
When passing an array as argument, array decays into the pointer of FIRST element of array. One must define a rule, to let the method know the number of elements. You declare char mbuf[16], you pass it to setName(), setName() will not get char[], but will get char* instead. So, the declaration should be static … Read more
Let’s say you have person.rb: Class Person ……. end and you have dog.rb: class Dog …….. end If you want to access to Dog class inside Person you have to include it. That means your dog.rb would be: require ‘dog’ class Person def my_method dog = Dog.new() end end require ‘name_of_file_with_class’ This is just a … Read more
I do not fully understand what you wanted to achieve but i think is one of the following 2: 1.return a continuous range of value between minimum and maximum. In this case you can use range and do not pass Y as input param. def Z(minimum,maximum): Y = range(minimum, maximum) return Y print Z(2,4) 2.you … Read more
Use this it works….. create boolean variable as global within class but outside methods. boolean flag=true; and add this clicked method. @Override public void onClick(View v) { if (flag){ power.setVisibility(View.GONE); flag=false; } else { flag=true; power.setVisibility(View.VISIBLE);} } }); mute always visible , because you performing visibility with power that why the result coming same. enjoy … Read more
NSMutableString.string is a hack. It “works” for the same reason that myString.length and [myString length] produce the same result. However, since dot notation is not used with an actual property, it is an abuse of the language feature, because properties have a different semantic. For example, when you access a property multiple times, you naturally … Read more