Your budgetEntityList is empty when you do budgetEntity= budgetEntityList.get(k); Doing a new ArrayList<>(capacity) does not fill your ArrayList with BudgetList objects, it only sets the initial capacity of your ArrayList. So, what you need to do is: for(int k=0; k < budgetEntityList.size() ; k++) { budgetEntity = new BudgetEntity(); budgetEntityList.add(budgetEntity); } And then, set the … Read more
Your issue is Exception in thread “main” java.lang.ArrayIndexOutOfBoundsException: 10 because you use array and fixed the size by 10 and you try to add more than 10 elements int this array, please read this arrayindexoutofboundsexception for more details. you have to use array list instead of array ArrayList<Integer> arr = new ArrayList<Integer>(); arr.add(num); // use … Read more
Your for loop count is exceeding over the array’s length. Both the for loops should be run like for (int count = 0; count < lottoNumbers.length; count++) Also, you shouldn’t hardcode your length values (5, 4) used in your count comparisons for printing commas. Use the length property as for (int count = 0; count … Read more
Try Intent intent=new Intent(ctx,home.class)and Instead of StartAcitvity(intent), try using ctx.startActivity(intent) 3 solved Open new activity on else statement [closed]
You are using static in your parameters. This means that everytime you run they get overriden which perfectly explains why you are always getting the last element. You need to change to this: private String jobDescription; private String datasetName; private String jobName; private String responsiblePerson; solved TreeMap implementation in java returns only last element [closed]
You have not called print method from main method. One more mistake is in your code that, you mentioned about 3 times of index variable and in your code you are taking cube of index variable. public class progprblm5{ public static void main(String []args){ double alpha[] = new double[50]; for(int i =0;i<25;i++){ alpha[i]= i*i; } … Read more
Create Calendar objects for each date, set their fields, use Calendar’s before and after methods to determine which range current date belongs to 0 solved Java: Check if current date is in specific date range
There are two problems. One, you cannot modify final variables. Two, you have to use final variables to have scope within the listeners. This code needs serious refactoring. However, here is a quick solution that requires minimal intervention. Remove all of the boolean tleft; boolean tmid; … variables Add this enum outside of the main() … Read more
On line 99 in your XML helper you only create a new item object if the element’s name is item. Then in endElement(…), you set the title if the name is title. So you encountered a title element which is not inside an item element, before creating the first item. You should probably add an … Read more
I don’t think there is a good way to do this, as your first activity could get collected by the system, and you generally don’t want to do work after onPause has been called. I would move that logic that updates the views into a service that runs in the background. Since it sounds like … Read more
You’ve forgot to state the correct question. As I can see from the Java code provided (reverse engineering), all you want is to have MD5 hash code (as a String) for a given file; if it’s your case, you want just to Create MD5 crypto Open the file Compute hash on file stream Represent hash … Read more
Alright let’s see. First you call Circle9() that starts the constructor: /** No-arg constructor */ public Circle9() { this(1.0); System.out.print(“C”); } As you can see the constructor first calls this(1.0) This means that another constructor is opened and afterwards we print “C” Alright the next Constructor is: public Circle9(double radius) { this(radius, “white”, false); System.out.print(“D”); … Read more
if (dollarfield.getText().toString().equals(“”)) { Toast.makeText(getApplicationContext(), “no value has been entered”, Toast.LENGTH_LONG).show(); } else { Double dollarAmount = Double.parseDouble(dollarfield.getText().toString()); Double poundAmount = dollarAmount * 0.7; Toast.makeText(getApplicationContext(), poundAmount.toString() + “Pounds”, Toast.LENGTH_LONG).show(); } 4 solved How can i prevent my Currency converter app from crashing when button is pressed?
You have declared class level variables, but you are not using them, you are creating local variables in main() with the same name, these variables are not the same as class level variables. Instead of doing stuffs like this JTextPane ta = new JTextPane(); you should do this.ta = new JTextPane(); This code should fix … Read more
You are trying to add a string to an EditText: A=””+e; This can’t be done. You probably want to add a string to a string, instead: A = “” + e.getText().toString(); solved make a variable final in Android Studio