Kirat The nullpointer exception basic reason is that you are calling a method or variable from null variable where with null variable I mean a variable which is currently not holding reference of any object. So, the easy way to avoid it is assign that variable a refernce on which subsequent tasks can be called Now … Read more
Please try the following: <!— pseudo query —> <cfscript> report = queryNew(“productTypeName,paintType,paintColor,paintCode,quantity,litreName”); queryAddRow(report, [[“Honey”,”Texture”,”Brilliant White”,1700,3,”20 litres”]]); queryAddRow(report, [[“Honey”,”Texture”,”Off White”,1701,8,”20 litres”]]); queryAddRow(report, [[“Magic”,”Texture”,”Off White”,1701,21,”20 litres”]]); queryAddRow(report, [[“Magic”,”Texture”,”Brilliant White”,1700,8,”20 litres”]]); queryAddRow(report, [[“Princess”,”Gloss”,”Brilliant White”,9102,9,”4 litres”]]); queryAddRow(report, [[“Princess”,”Texture”,”Rose Pink”,1712,3,”20 litres”]]); queryAddRow(report, [[“Princess”,”Texture”,”Ivory”,1704,1,”20 litres”]]); queryAddRow(report, [[“Princess”,”Texture”,”Off White”,1701,3,”20 litres”]]); queryAddRow(report, [[“Princess”,”Texture”,”Off White”,1701,3,”20 litres”]]); </cfscript> <!— add groupRowspan and groupTotalQuantity columns —> … Read more
Because a backslash is used as an escape character, you’ll need to escape it: str = str.replace(“\\/”, “https://stackoverflow.com/”); The above replaces \/ with /. In general, anywhere you use a backslash in a string, you probably need to escape it. So, to replace /\ with /, you’d use: str = str.replace(“/\\”, “https://stackoverflow.com/”); These will, of … Read more
If you don’t already have a list of rhyming words, you will just have to enter them all like that (or put them all in a config file of some kind and read that in), but either way you’re just typing them all in. What you are calling harvesting from rhymezone is called scraping. You … Read more
You are right that stock photos are a waste of money if you are building for personal projects, but there are plenty of free stock photo websites: http://deathtothestockphoto.com/ is a good choice Buy a template from websites like themeforest or wrapbootstrap (google them) or the free templates on bootstrap’s website: http://startbootstrap.com/. Start making things and … Read more
When Ok is pressed after the pin is entered you need to verify if the entered pin is the same as the saved pin, if yes you can open the activity you want to. You need to have an edittext to collect the pin. <EditText android:id=”@+id/passwordedittext” android:layout_width=”200dp” android:layout_height=”wrap_content” android:inputType=”textPassword”> <requestFocus /> An ok button is … Read more
1) You can share int with other activity like this : String YOUR_KEY = “id”; Intent intent = new Intent(getApplicationContext(), DisplayContact.class); intent.putExtra(YOUR_KEY, id); startActivity(intent); or Bundle dataBundle = new Bundle(); dataBundle.putInt(YOUR_KEY, id); intent.putExtras(dataBundle); 2) And get int in your activity like that : int defaultValue = 0; int id = getIntent().getIntExtra(YOUR_KEY, defaultValue); or Bundle extras … Read more
You’ll need instance variables for the things you want to track, for example firstName, lastName, address. You can set and retrieve these values by making getters and setters for every instance variable. You could also make a constructor which assings the given arguments to the instance variables when you create a new resident, since every … Read more
var temp = new List<string>(); foreach(var item in remoteFiles){ if(localfiles.Contains(item) == false){ temp.Add(item); } } //temp now contains all items in remoteFiles that are not present in localfiles 1 solved How to compare two lists and get unmatching items – without using LINQ [closed]
It looks like the cause of this could be the mix up of gateways and devices as per my previous comment. From the logs it looks like you have changed the types of the device IDs between gateway and device, and in some cases a device with id b827eb0a0ee8 has connected as a gateway (shown … Read more
Use Date.parse() to test date strings. As for testing alpha-numeric strings without regex, write a loop to go through the characters of the strings to see of a character is there that shouldn’t be. solved Validation without regex
In Ruby a lot of us face these types of situations, where upgrading to a newer version could potentially break your code which used to work fine in an older one. The fantastic Mr. Wayne E. Seguin faced it too, and created a great tool for solving this called rvm. In a nutshell rvm lets … Read more
Without knowing how the python file works, we cannot tell you how to use it, but it actually tells you in the error message already quite a bit. It looks like you should run something like: python tcp_deadlock.py {server,client} 123.123.123.123 where you use a hostname (to connect to?) instead of 123.123.123.123. solved Python and setting … Read more
If you want to go with the $GOPATH way, then this is still working on go1.14.1: You can put both projects (not using gomodules) inside your GOPATH: Project foo is under GOPATH/src/foo/ Project, our lib, greeting is under GOPATH/src/myfancycompany/greeting/ Our goal is that foo will import greeting. Then foo/main.go will look like this: package main … Read more
I also think if you had defined it as a character it might simply your work. where you defined float innum; char plus=”+”; char minus=”+”; char times=”x”; … and then you use `if (Character.toString(OP).matches(plus)) { // … } this will make your work more granular. solved how to read math symbols