AnujJha-stack

// coded by Anuj Jha
//
#include <stdio.h>
#include<ctype.h>
int main() {
    FILE *fp;
    char vowels[] = {'a','e','i','o','u'};
    char alphabets[] = {'b','c','d','f','g','h','j','k','l','m','n','p','q','r','s','t','v','w','x','y','z'};
    char digit[] = {'0','1','2','3','4','5','6','7','8','9'};
    char spSymbol[] = {'#','!','@','$','^','&','*'};

AnujJha-stack

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string firstFriend = "Maria";
string secondFriend = "Sage";
Console.WriteLine($"My friends are {firstFriend} and {secondFriend}");

>>My friends are Maria and Sage.
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AnujJha-stack

//coded by anuj_jha(170303105120)
//P2: CDMA for two user and one bit data.
import java.util.Scanner;
public class cdma {
    static Scanner input = new Scanner(System.in);
    public static void main(String[] ar){
        System.out.println("Enter Data 1 (1 bit) : ");
        int data1 = inputData();
        System.out.println("Enter code 1 (4 bit) : ");
        int[] codeArray1 = inputArray();

AnujJha-stack

// coded by Anuj Jha
// Caesar Cipher encryption-decryption
//caution : avoid special character.
import java.util.Scanner;
public class CaesarCipher {

    static int[] encryption(int[] charArray, int key){
        for(int i = 0; i < charArray.length;i++){
            if(charArray[i] <=90)   //for UPPERCASE
                charArray[i] = ((charArray[i] + key -65) % 26) + 65;

AnujJha-stack

import static java.lang.Thread.sleep;
class Player implements Runnable{
    private int speed;
    private String name;
    private static int coveredDistance=0;
    Player(String name, int speed){
        this.name = name;
        this.speed = speed;
    }
    public void run(){

AnujJha-stack

//synchronized block
import java.util.Scanner;
class Account{
    private int balance;
    Account(int balance){
        this.balance = balance;
    }
    private boolean isSufficient(int balance){
        return (this.balance >= balance);
    }

AnujJha-stack

//default throw our catch
public class ExpHand1 {
    public static void main(String[] a) {
        try {
            System.out.println("INSIDE TRY l1");
            String s = null;
            int len = s.length();//null pointer exception
//          int tmp = 5 / 0;//arithmetic exception
            System.out.println("INSIDE TRY l3");//not executed
        }

AnujJha-stack

//fields are implicitly : public  & static & final.
//methods are implicitly : public & abstract.
//since fields are abstract interface doesn't support constructor.
//>>class C2 extends C1 implements I3<<
//Above syntax also possible.

interface I1{
    void f1();
}
interface I2{

AnujJha-stack

// data field cant be abstract mut method does.
//data field - protected/public.
//methods - public/default/protected
abstract class Person{
	protected String name;
	protected int age;
	abstract public void setName(String name);
	abstract public void setAge(int age);
	abstract public String getName();
	abstract public int getAge();

AnujJha-stack

class Main{
	public static void main(String[] a){
		Student s1 = new Student();
		s1.setRollNumber(1);
		s1.setName("Anuj");
		s1.setAge(21);
		System.out.println("RollNUmber: "+s1.getRollNumber()+"\tName : "+s1.getName()+"\tAge : "+s1.getAge());
	}
}