hisuperaman

const util = require('util');


function getRandomInt(min, max) {
    const minCeiled = Math.ceil(min);
    const maxFloored = Math.floor(max);
    return Math.floor(Math.random() * (maxFloored - minCeiled) + minCeiled);
}

hisuperaman

// if a class has more functionality rather than just running as Thread
// you should use Runnable interface instead of extending Thread class
// because a class can implement multiple interfaces
class Player{
    void move(){
        System.out.println("Moving...");
    }
}

class MyRunnable extends Player implements Runnable{

hisuperaman

class MyThread extends Thread{
    @Override
    public void run(){
        try{
            for(int i=0; i<5; i++){
                System.out.println(Thread.currentThread().getName() + " -> " + i);
                Thread.sleep(1000);
            }
        }
        catch(InterruptedException e){

hisuperaman

import java.util.*;
import java.io.*;


class FileHandling{
    // this method does not handle the exception but the caller need to handle it
    // if a method can throw a checked exception, it must indicate it in
    // the exception list using 'throws'
    static String getFileContent(String filePath) throws IOException{
        BufferedReader file = new BufferedReader(new FileReader(filePath));

hisuperaman

class Troop{
    void move(){
        System.out.println("Troop is moving!");
    }
}

class Barbarian extends Troop{
    @Override
    void move(){
        System.out.println("Barbarian is moving!");

hisuperaman

class UserMethods{
    static int add(int a, int b){
        return a+b;
    }
    
    static String add(String a, String b){
        return a+b;
    }

    static String add(char a, char b){

hisuperaman

import java.util.*;

// defining a custom Exception
class UserDefinedException extends Exception{
    UserDefinedException(String str){
        super(str);
    }
}

public class FactorialWithException{

hisuperaman

class Player{
    String name;
    int x, y;
    int width, height;
    int hp;

    Player(String name, int x, int y, int width, int height, int hp){
        this.name = name;
        this.x = x;
        this.y = y;

hisuperaman

/**
 * finalize() method is a method of Object class that is used to perform cleanup
 * activity before destroying any object
 * it is callled by garbage collector (System.gc()) beofre destroying objects from
 * memory
 * helps garbage collector to close all the resources used by the objects
 * finalize() is non static and protected method of java.lang.Object class
 * Object class is superclass of all Java classes
 * finalize() method is called only once per object
 * JVM calls garbage collector to delete unreferenced objects at runtime

hisuperaman

class Rectangle{

    double length;
    double breadth;

    Rectangle(double length, double breadth){
        this.length = length;
        this.breadth = breadth;
    }