• Nov 19, 2022 •CodeCatch
0 likes • 1 view
//sample code to write 100 random ints to a file, 1 per line import java.io.PrintStream; import java.io.IOException; import java.io.File; import java.util.Random; public class WriteToFile { public static void main(String[] args) { try { PrintStream writer = new PrintStream(new File("randInts.txt")); Random r = new Random(); final int LIMIT = 100; for (int i = 0; i < LIMIT; i++) { writer.println(r.nextInt()); } writer.close(); } catch (IOException e) { System.out.println("An error occured while trying to write to the file"); } } }
• May 21, 2025 •AustinLeath
0 likes • 2 views
class main { public static boolean findDuplicates(int[] nums) { for(int i = 0; i < nums.length; i++) { for(int j = 0; j < i; j++) { if(nums[i] == nums[j]) { return true; } } } return false; } public static void main(String[] args) { int[] myArray = {1,3}; System.out.println(findDuplicates(myArray)); } }
• Feb 6, 2021 •Daedalus
0 likes • 0 views
import java.util.Scanner; /* In Heaven, the seed is tall and the oak small / It's input vital * "The al-Madinatian," verse 236-37 * tinyurl.com/17snqkfv * email answer to [email protected] **/ public class Main { public static void main(String args[]) { int x = 0; int a, c, m = 10000; Scanner in = new Scanner(System.in); System.out.println("Please enter a seed, maximum 3000000:"); x = in.nextInt(); System.out.println("Please input a number, maximum 29:"); a = in.nextInt(); System.out.println("Please input a number, maximum 999999:"); c = in.nextInt(); char menu = 'y'; while(menu != 'n') { x = (a*x + c) % m; System.out.println("The next number is " + x + "\nWould you like another? (y/n)"); menu = in.next().charAt(0); } } } //██╗ ░█████╗░███╗░░░███╗ ██████╗░░█████╗░███████╗██████╗░░█████╗░██╗░░░░░██╗░░░██╗░██████╗ //██║ ██╔══██╗████╗░████║ ██╔══██╗██╔══██╗██╔════╝██╔══██╗██╔══██╗██║░░░░░██║░░░██║██╔════╝ //██║ ███████║██╔████╔██║ ██║░░██║███████║█████╗░░██║░░██║███████║██║░░░░░██║░░░██║╚█████╗░ //██║ ██╔══██║██║╚██╔╝██║ ██║░░██║██╔══██║██╔══╝░░██║░░██║██╔══██║██║░░░░░██║░░░██║░╚═══██╗ //██║ ██║░░██║██║░╚═╝░██║ ██████╔╝██║░░██║███████╗██████╔╝██║░░██║███████╗╚██████╔╝██████╔╝ //╚═╝ ╚═╝░░╚═╝╚═╝░░░░░╚═╝ ╚═════╝░╚═╝░░╚═╝╚══════╝╚═════╝░╚═╝░░╚═╝╚══════╝░╚═════╝░╚═════╝░
import java.io.File; import java.io.IOException; import java.util.Map; import java.util.Scanner; import java.util.TreeMap; public class SimpleWordCounter { public static void main(String[] args) { try { File f = new File("ciaFactBook2008.txt"); Scanner sc; sc = new Scanner(f); // sc.useDelimiter("[^a-zA-Z']+"); Map<String, Integer> wordCount = new TreeMap<String, Integer>(); while(sc.hasNext()) { String word = sc.next(); if(!wordCount.containsKey(word)) wordCount.put(word, 1); else wordCount.put(word, wordCount.get(word) + 1); } // show results for(String word : wordCount.keySet()) System.out.println(word + " " + wordCount.get(word)); System.out.println(wordCount.size()); } catch(IOException e) { System.out.println("Unable to read from file."); } } }
public class Factorial { public static void main(String[] args) { final int NUM_FACTS = 100; for(int i = 0; i < NUM_FACTS; i++) System.out.println( i + "! is " + factorial(i)); } public static int factorial(int n) { int result = 1; for(int i = 2; i <= n; i++) result *= i; return result; } }
• Feb 1, 2022 •LeifMessinger
//Leif Messinger //Solves wordle //Needs a list of wordle words, newline separated and 5 characters each import java.util.*; import java.io.File; import java.io.FileNotFoundException; class WordleSolver { public static void printPointer(int position){ for(int i = 0; i < position; ++i){ System.out.print(" "); } System.out.print("^"); } public static void main(String[] args) throws FileNotFoundException{ if(args.length < 1) return; File dictionary = new File(args[0]); Scanner sc = new Scanner(dictionary); ArrayList<String> possibleWords = new ArrayList<String>(); while(sc.hasNextLine()){ possibleWords.add(sc.nextLine()); } Scanner input = new Scanner(System.in); while(possibleWords.size() > 0){ //Choose a word out of the possible words final int randomIndex = (int)(Math.random() * possibleWords.size()); String chosenWord = possibleWords.get(randomIndex); possibleWords.remove(randomIndex); System.out.println("Is it correct?"); for(int i = 0; i < chosenWord.length(); ++i){ System.out.println(chosenWord); printPointer(i); System.out.println(" y/n?"); if(input.nextLine().toLowerCase().contains("y")){ //Filter by correct character for(int possibleWord = possibleWords.size() - 1; possibleWord >= 0; --possibleWord){ //Has to be backwards for removing entries, also has to be int not unsigned if(possibleWords.get(possibleWord).charAt(i) != chosenWord.charAt(i)){ possibleWords.remove(possibleWord); } } } } System.out.println("Is it misplaced?"); //Stores a count of every letter misplaced short[] misplacedCounts = new short[('z'-'a')+1]; //Praise be the garbage collector for(int i = 0; i < chosenWord.length(); ++i){ System.out.println(chosenWord); printPointer(i); System.out.println(" y/n?"); if(input.nextLine().toLowerCase().contains("y")){ //Filter to make sure there's at least as many letters as needed ++misplacedCounts[(chosenWord.charAt(i) - 'a') - 1]; for(int possibleWord = possibleWords.size() - 1; possibleWord >= 0; --possibleWord){ //Has to be backwards for removing entries, also has to be int not unsigned int count = 0; for(int j = 0; j < possibleWords.get(possibleWord).length(); ++j){ if(possibleWords.get(possibleWord).charAt(j) == chosenWord.charAt(i)) ++count; } //If there's not enough of the character that we need, then we remove that from the list of possible characters if(count < misplacedCounts[(chosenWord.charAt(i) - 'a') - 1]){ possibleWords.remove(possibleWord); } } //Also filter out words where that letter doesn't belong there for(int possibleWord = possibleWords.size() - 1; possibleWord >= 0; --possibleWord){ //Has to be backwards for removing entries, also has to be int not unsigned if(possibleWords.get(possibleWord).charAt(i) == chosenWord.charAt(i)){ possibleWords.remove(possibleWord); continue; //Breaks the current word and moves on in the loop } } } } } } }