Master-Level Java Assignment Questions Solved by Experts for Academic Excellence
Java remains one of the most in-demand programming languages in academia and the tech industry. However, mastering Java takes time, practice, and guidance—especially when tackling complex assignments. At www.programminghomeworkhelp.com, we provide high-quality help with Java assignment tasks for students across the globe, ensuring timely delivery, detailed code documentation, and academic integrity.
Our team of experienced Java experts has completed thousands of assignments ranging from beginner-level to master’s-level complexities. If you're asking yourself, “Who can provide reliable help with Java assignment?”—you’ve come to the right place.
In this blog post, we’ll share two master-level Java assignment questions along with their expert-verified solutions. These examples showcase the kind of in-depth support you can expect when you trust us with your academic success.
Java Assignment 1: Implementing a Multi-threaded File Search Utility
Question:Design and implement a Java application that searches through all files in a given directory (including subdirectories) for a specific keyword using multithreading. The program should print the name of the file and the line number where the keyword was found.
Solution by Our Expert:
import java.io.*;
import java.util.concurrent.*;
public class KeywordSearch {
private static ExecutorService executor = Executors.newFixedThreadPool(10);
public static void main(String[] args) {
String directoryPath = "C:/documents";
String keyword = "synchronized";
searchFiles(new File(directoryPath), keyword);
executor.shutdown();
}
private static void searchFiles(File file, String keyword) {
if (file.isDirectory()) {
for (File subFile : file.listFiles()) {
searchFiles(subFile, keyword);
}
} else {
executor.execute(() -> searchInFile(file, keyword));
}
}
private static void searchInFile(File file, String keyword) {
try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
String line;
int lineNum = 1;
while ((line = reader.readLine()) != null) {
if (line.contains(keyword)) {
System.out.printf("Found in %s at line %d%n", file.getName(), lineNum);
}
lineNum++;
}
} catch (IOException e) {
System.err.println("Error reading file: " + file.getName());
}
}
}
Our expert created a highly efficient solution with multithreading to boost performance and ensure faster execution, even on large datasets.
Java Assignment 2: Custom HashMap Implementation
Question:Implement a simplified version of a HashMap in Java without using any built-in Java Collections classes.
Solution by Our Expert:
class MyHashMap<K, V> {
private class Node<K, V> {
K key;
V value;
Node<K, V> next;
Node(K key, V value) {
this.key = key;
this.value = value;
}
}
private int size = 16;
private Node<K, V>[] buckets;
public MyHashMap() {
buckets = new Node[size];
}
private int getIndex(K key) {
return Math.abs(key.hashCode()) % size;
}
public void put(K key, V value) {
int index = getIndex(key);
Node<K, V> head = buckets[index];
while (head != null) {
if (head.key.equals(key)) {
head.value = value;
return;
}
head = head.next;
}
Node<K, V> newNode = new Node<>(key, value);
newNode.next = buckets[index];
buckets[index] = newNode;
}
public V get(K key) {
int index = getIndex(key);
Node<K, V> head = buckets[index];
while (head != null) {
if (head.key.equals(key)) {
return head.value;
}
head = head.next;
}
return null;
}
}
This solution demonstrates an advanced understanding of hashing, collision handling via chaining, and memory management—all done without using the Java Collections Framework.
Whether your Java assignment involves advanced data structures, algorithms, or multithreading, our experts are well-equipped to help. With our help with Java assignment service, you get more than just a solution—you gain clarity, learning, and academic improvement.
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