Category: Example

import java.util.Scanner;

public class SimpleInterest {

 public static void main(String[] args) {

 Scanner input = new Scanner(System.in);

 System.out.print(“Enter principal amount: “);

 double principal = input.nextDouble();

 System.out.print(“Enter rate of interest: “);

 double rate = input.nextDouble();

 System.out.print(“Enter time period in years: “);

 double time = input.nextDouble();

 double simpleInterest = (principal * rate * time) / 100;

 System.out.println(“Simple Interest: ” + simpleInterest);

 input.close();

 }

Output:

Enter principal amount: 5000

Enter rate of interest: 2.5

Enter time period in years: 3

Simple Interest: 375.0

public class CompoundInterest {

 public static void main(String[] args) {

 double principal = 15000, rate = 5.5, time = 3;

 double compoundInterest = principal * (Math.pow((1 + rate / 100), time)) – principal;

 System.out.println(“Compound Interest: ” + compoundInterest);

 }

Output:

Compound Interest: 2653.4375

public class VowelConsonant {

 public static void main(String[] args) {

 char ch = ‘A’;

 if (ch == ‘a’ || ch == ‘e’ || ch == ‘i’ || ch == ‘o’ || ch == ‘u’

 || ch == ‘A’ || ch == ‘E’ || ch == ‘I’ || ch == ‘O’ || ch == ‘U’) {

 System.out.println(ch + ” is a vowel.”);

 } else {

 System.out.println(ch + ” is a consonant.”);

 }

 }

Output:

A is a vowel.

public class LeapYear {

 public static void main(String[] args) {

 int year = 2024;

 if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {

 System.out.println(year + ” is a leap year.”);

 } else {

 System.out.println(year + ” is not a leap year.”);

 }

 }

Output:

2024 is a leap year.

public class MultiplyTwoNumbers {

 public static void main(String[] args) {

 double first = 2.5, second = 4.5;

 double product = first * second;

 System.out.println(“The product is: ” + product);

 }

Output:

The product is: 11.25

class Complex {

 double real, imaginary;

 Complex(double r, double i) {

 this.real = r;

 this.imaginary = i;

 }

 public static Complex add(Complex c1, Complex c2) {

 Complex temp = new Complex(0, 0);

 temp.real = c1.real + c2.real;

 temp.imaginary = c1.imaginary + c2.imaginary;

 return temp;

 }

}

public class AddComplexNumbers {

 public static void main(String[] args) {

 Complex c1 = new Complex(4.5, 5);

 Complex c2 = new Complex(2.5, 3.5);

 Complex temp = Complex.add(c1, c2);

 System.out.println(“Sum = ” + temp.real + ” + ” + temp.imaginary + “i”);

 }

}

Output:

Sum = 7.0 + 8.5i

public class AddBinaryNumbers {

 public static void main(String[] args) {

 long binary1 = 1010, binary2 = 1101;

 int i = 0, remainder = 0;

 long[] sum = new long[20];

 while (binary1 != 0 || binary2 != 0) {

 sum[i++] = (binary1 % 10 + binary2 % 10 + remainder) % 2;

 remainder = (int) (binary1 % 10 + binary2 % 10 + remainder) / 2;

 binary1 = binary1 / 10;

 binary2 = binary2 / 10;

 }

 if (remainder != 0) {

 sum[i++] = remainder;

 }

 –i;

 System.out.print(“Sum of two binary numbers: “);

 while (i >= 0) {

 System.out.print(sum[i–]);

 }

 }

Output:

Sum of two binary numbers: 11011

public class PrintPattern {

 public static void main(String[] args) {

 int rows = 5;

 for (int i = 1; i <= rows; ++i) {

 for (int j = 1; j <= i; ++j) {

 System.out.print(“* “);

 }

 System.out.println();

 }

 }

}

Output:

* 

* * 

* * * 

* * * * 

* * * * *

public class Factorial {

 public static void main(String[] args) {

 int num = 5, factorial = 1;

 for(int i = 1; i <= num; ++i) {

 factorial *= i;

 }

 System.out.println(“Factorial of ” + num + ” is: ” + factorial);

 }

Output:

Factorial of 5 is: 120

public class EvenOdd {

 public static void main(String[] args) {

 int num = 5;

 if(num % 2 == 0)

 System.out.println(num + ” is even.”);

 else

 System.out.println(num + ” is odd.”);

 }

Output:

5 is odd.