Assignment 1

**{CHECK  A  No. IS EVEN OR ODD}**

package com.javalearnings;
import java.util.Scanner;
public class Main {
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("Enter the number");
        int num = input.nextInt();
        if (num % 2 == 0) {
            System.out.println("even number");
        } else {
            System.out.println("odd number");
        }
    }
}

**{ASK NAME AND GREET}**

package com.javalearnings;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Enter your name: ");
        String name = input.nextLine();
        System.out.println("Hello, " + name + " nice to meet you keep growing & keep shining");
    }
}

**{CALCULATE S.I.}**

package com.javalearnings;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Enter principle amount: ");
        Double amt = input.nextDouble();
        System.out.println("Enter rate of interest: ");
        Float rate = input.nextFloat();
        System.out.println("Enter time in years: ");
        int t = input.nextInt();
        Double totalamt = (amt * rate * t) / 100;
        System.out.println("total amt" + totalamt);
    }
}

**{Take in two numbers and an operator (+, -, *, /) and calculate the value. (Use if conditions)}**

package com.javalearnings;
import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Enter two numbers: ");
        Double num1 = input.nextDouble();
        Double num2 = input.nextDouble();
        System.out.println("Enter the operator: ");
        char operator = input.next().charAt(0);
        if(operator == '+'){
            System.out.println("The sum of the two numbers is: " + (num1 + num2));
        }
        else if(operator == '-'){
            System.out.println("The difference of the two numbers is: " + (num1 - num2));
        }
        else if(operator == '*'){
            System.out.println("The product of the two numbers is: " + (num1 * num2));
        }
        else if(operator == '/'){
            System.out.println("The division of the two numbers is: " + (num1 / num2));
        }
        else if(operator == '%'){
            System.out .println("The remainder of the two numbers is: " + (num1 % num2));
        else{
            System.out.println("Invalid operator");
        }
    }
}

**{take two numbers and print the largest one}**

package com.javalearnings;
import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Enter two numbers: ");
        int num1 = input.nextInt();
        int num2 = input.nextInt();
        if(num1 > num2){
            System.out.println(num1 + " is the largest number.");
        }
        else{
            System.out.println(num2 + " is the largest number.");
        }
    }
}

**{take input & convert indian ruppees into dollars}**

package com.javalearnings;
import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("Enter the amount in INR: ");
        double inr = input.nextDouble();
        double usd = inr / 80 ;
        System.out.println("The amount in USD is: " + usd);
    }
}

**{To calculate Fibonacci Series up to n numbers.}**

package com.javalearnings;
import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("Enter the number of terms: ");
        int n = input.nextInt();
        int a = 0;
        int b = 1;
        System.out.print("The Fibonacci Series is: ");
        for(int i = 0; i < n; i++){
            System.out.println(a + " ");
            int num = a+b;
            a=b;
            b=num;
        }
    }
}

**{To find out whether the given String is Palindrome or not.}**

package com.javalearnings;
import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("Enter the string: ");
        String str = input.nextLine();
        String rev = "";
        for(int i = str.length()-1; i >= 0; i--){
            rev = rev + str.charAt(i);
        }
        if(str.equals(rev)){
            System.out.println("The string is a palindrome.");
        }
        else{
            System.out.println("The string is not a palindrome.");
        }
    }
}

**{To find Armstrong Number between two given number.}**

package com.javalearnings;
import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("Enter the range: ");
        int n1 = input.nextInt();
        int n2 = input.nextInt();
        for(int i = n1; i <= n2; i++){
            int num = i;
            int sum = 0;
            while(num > 0){
                int rem = num % 10;
                sum = sum + (rem * rem * rem);
                num = num / 10;
            }
            if(sum == i){
                System.out.println(i + " is an Armstrong number.");
            }
        }
    }
}