Write a Point2D client that takes an integer value N from the command line, generates N random points in the unit square, and computes the distance separating the closest pair of points
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Write a Point2D client that takes an integer value N from the command line,
generates N random points in the unit square, and computes the distance separating
the closest pair of points
Step by step
Solved in 3 steps with 3 images
- Write a program that uses a HashMap to compute a histogram of positivenumbers entered by the user. The HashMap’s key should be the numberthat is entered, and the value should be a counter of the number of timesthe key has been entered so far. Use −1 as a sentinel value to signal theend of user input. For example, if the user inputs:512355321-1then the program should output the following (not necessarily in this order):The number 3 occurs 2 times.The number 5 occurs 3 times.The number 12 occurs 1 times.The number 21 occurs 1 times.Within a Java class, write a method that creates n random strings of length 10 and inserts them in a hash table. The method should compute the average time for each insertion. provide code and output.Write a program that can dynamically change the font of a text ina label displayed on a stack pane. The text can be displayed in bold and italic atthe same time. You can select the font name or font size from combo boxes, asshown in Figure . The available font names can be obtained using Font.getFontNames(). The combo box for the font size is initialized with numbersfrom 1 to 100.
- Write a client that takes integers M, N, and T as input andruns the following experiment T times: Generate a random pattern of length M and arandom text of length N, counting the number of character compares used by KMP tosearch for the pattern in the text. Instrument KMP to provide the number of compares,and print the average count for the T trials.Write a program that receives an integer and displays its first ten multiples in decreasing order. For example, if the integer is 5, he first ten multiples are displayed as 50, 45, 40, 35, 30 25, 20, 15, 10, 5. Use the StackOfIntegers class to store the multiples (e.g., 5, 10, ..., 50) and retrieve and display the multiples in reverse order.A grid needs a system for numbering the tiles in order to allow random-access lookup.For instance, the rows and columns of a square grid provide a natural numbering for the tiles. Create plans for hexagonal and triangular grids. Create a rule for identifying the neighbourhood (i.e., nearby tiles) of a certain tile in the grid using the numbering scheme. For instance, the neighbourhood of tile I j in a four-connected square grid with indices of I for rows and j for columns may be described as neighbourhood(i, j) = I 1, j, I j 1.
- Write the Java implementation of an instance method, called countRange, inside the IntArrayBag class such that the method takes two input integer parameters, called start and end. The method then counts and returns how many elements in the bag fall in the range between start and end inclusive. For example, if start is 5 and end is 8, then the method counts how many elements in the bag are equal to 5,6,7, or 8. The method returns zero if start > end. Make sure to include the method header.public void OnSend(View v){ String phoneNumber = number.getText().toString(); String smsmessage = message.getText().toString(); if(phoneNumber == null || phoneNumber.length() == 0 || smsmessage == null || smsmessage.length() == 0){ return; } if(checkPermission(Manifest.permission.SEND_SMS)){ SmsManager smsManager = SmsManager.getDefault(); smsManager.sendTextMessage(phoneNumber, null, smsmessage, null, null); Toast.makeText(this, "Message sent", Toast.LENGTH_SHORT).show(); } Question 2: Explain the following code: button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { FragmentManager fm = getSupportFragmentManager(); FragmentTransaction ft = fm.beginTransaction(); XFragment xfragment = new XFragment(); ft.add(R.id.Main_fragment, xfragment);…In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Then, display the contents of this HashMap with given words and their frequency in the document. Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it.
- Write a program Minesweeper.java that takes three integer command-line arguments m, n, and k and prints an m-by-n grid of cells with k mines, using asterisks for mines and integers for the neighboring mine counts (with two space characters between each cell). To do so, Generate an m-by-n grid of cells, with exactly k of the mn cells containing mines, uniformly at random. For each cell not containing a mine, count the number of neighboring mines (above, below, left, right, or diagonal)Write a Java class called GuessMyNumber that prompts the user for an integer n, tells the user to think of a number between 0 and n−1, then makes guesses as to what the number is. After each guess, the program must ask the user if the number is lower, higher, or correct. You must implement the divide-and-conquer algorithm from class. In particu[1]lar, you should round up when the middle of your range is in between two integers. (For example, if your range is 0 to 31, you should guess 16 and not 15, but if your range is 0 to 30 you should certainly guess 15). The flow should look like the following: Enter n: 32 Welcome to Guess My Number! Please think of a number between 0 and 31. Is your number: 16? Please enter C for correct, H for too high, or L for too low. Enter your response (H/L/C): H Is your number: 8? Please enter C for correct, H for too high, or L for too low. Enter your response (H/L/C): L Is your number: 12? Please enter C for correct, H for too high, or L for too low.…IN JAVA Write a method that accepts two integer parameters rows and cols. The output is a comma-separated grid of numbers displayed in column-major order, meaning the numbers shown increase sequentially down each column and wrap to the top of the next column to the right once the bottom of the current column is reached. Examples printGrid (3, 6) → 1, 4, 7, 10, 13, 16 2, 5, 8, 11, 14, 17 3, 6, 9, 12, 15, 18 printGrid (5, 3) → 1, 6, 11 2, 7, 12 3, 8, 13 4, 9, 14 5, 10, 15 11 (Ctrl) 11