Try to use google GSON Library it will fullfill the same requirements as you want. Here is the Link for a sample tutorial implemented in android how ever the language used is Java All you have to do is make a data model of same type and as members in JSOn. try the example in … Read more
check if its not null then cast to integer: try { if(description[i][j]!=null && description[i][j].length()>0){ id=Integer.parseInt(description[i][j]); Toast.makeText(getApplicationContext(),id, Toast.LENGTH_SHORT).show(); } } instead of try { id=Integer.parseInt(description[i][j]); } i hope its work but description[i][j] must returns string. if id getting value then print toast.otherwise no toast print.. 2 solved App is crashing when I convert string to int
One of the easiest option you have is java.util.Scanner Defention: A simple text scanner which can parse primitive types and strings using regular expressions. A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace. The resulting tokens may then be converted into values of different types using the various … Read more
System.arraycopy(scores, 2, scores, 3, 2); This copies 2 items from source index 2. therefore {3, 4} into destination position 3. Since your source and destination arrays are the same you’re overwriting the 5 with the 4 {3 4} <== items copied { 1, 2, 3, 4, 5, 6} <== original 0 1 2 3 4 … Read more
You have an intermittent exception being thrown from a Swing GUI which highly suggests that this is a concurrency/threading issue. Are you starting the GUI on the Swing event dispatch thread? If not, please be sure to do this, especially with some Look & Feels such as Nimbus. In other words — create your GUI … Read more
The second parantheses are needed because the + operator is connected to it. For example if you have a+ then it matches one up to infinite repetitions of the character a, like the word aaaa. If you use the + together with a group then the whole group is allowed to repeat, like in (ab)+ … Read more
Add below code inside listview itemclick listner in activity: Tozihat gTozihat = new Tozihat().newInstance(“Data”); getSupportFragmentManager().beginTransaction() .replace(R.id.textViewTozihat, gTozihat).commit(); Inside your Fragment : private static final String TYPE = “DATA_KEY”; public static Tozihat newInstance(String type) { Tozihat fragment = new Tozihat(); Bundle args = new Bundle(); args.putString(TYPE, type); fragment.setArguments(args); return fragment; } 3 solved send string data … Read more
Best way is, split your expression with “https://stackoverflow.com/” and get the 3rd index. 1 solved How to get part of the URL using java [closed]
Why not try something like this. Of course, i have taken a bit of freedom on the design as you didnt provide any code. Hope this helps! private static Set<Node> getNodesFollowAllEdges(Node node) { Set<Node> nodes = getNodesFollowAllEdges(node, new HashSet<>()); // remember to remove the original node from the set nodes.remove(node); return nodes; } private static … Read more
For performance reasons and memory saving. Plus , the fact that the numbers are precise with no decimal values is very handy for a lot of cases. 3 solved Why do we have int type in Java? [closed]
This code declares a variable tables of type List<Data>, and initialize it to null. (I change your data to Data to match the java convention) I think you’re in trouble with the <Data> part. So let me say: List is a generic class, which can be parametrized with another type. You can write List<String> or … Read more
If you are looking for a code that generates random numbers between the given range, the below code is for you import java.util.Scanner; import java.util.Random; public class Insert { static Scanner input=new Scanner(System.in); public static void main(String [] args){ Random rand=new Random(); int max,min; System.out.println(“enter the maximum number”); max=input.nextInt(); System.out.println(“enter the minimum number”); min=input.nextInt(); int … Read more
a = 0 is wrong since a is an int array. You’re probably looking for a counter variable. It could be like this: boolean existsData = false; for(int i=0; i<arr.length; i++) //arr[i] = 0 means assign 0 to arr[i] //note that I’m using different (!=) existsData = (arr[i] != 0); if (existsData) { break; } … Read more
There is a compile error in the Grocery_Items class. You’ve commented the qty field: // private quantitypanel qty; // A panel for quantity Remove the comment private quantitypanel qty; // A panel for quantity and you won’t have any more error messages attached to it [qty]. 1 solved having errors in a java function
Remove the line Sample obj3 = new Sample(); because that will result in an endless loop (creating an instance of Sample while during the creation of an instance of Sample), causing your StackOverflowError. And please dont post code as an image. 4 solved creating an object outside main and user defined method scope gives “Exception … Read more