Categories
Java

Math Calculator in Java

A simple math calculator program that I wrote in Java programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.
My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com

I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Program Listing

Math_Calculator.java

import java.util.*;

public class Math_Calculator {
    public static void main(String[] args){
    Scanner Input = new Scanner(System.in);
    System.out.println("Enter Number");
    System.out.println("1 - Addition");
    System.out.println("2 - Subtraction");
    System.out.println("3 - Division");
    System.out.println("4 - Multiplication");
    
    int choice = Input.nextInt();
    if(choice==1){
        System.out.println("Enter first number");
        double num1 = Input.nextDouble();
        System.out.println("Enter Second number");
        double num2 = Input.nextDouble();
        double sum = num1+num2;
        System.out.println("sum= " + sum);
        
        
        }
    else if(choice==2){
        System.out.println("Enter first number");
        double num1 = Input.nextDouble();
        System.out.println("Enter Second number");
        double num2 = Input.nextDouble();
        double difference = num1-num2;
        System.out.println("difference= " + difference);
        
       
        }
    else if(choice==3){
        System.out.println("Enter first number");
        double num1 = Input.nextDouble();
        System.out.println("Enter Second number");
        double num2 = Input.nextDouble();
        double qoutient = num1/num2;
        System.out.println("qoutient= " + qoutient);
        
        }
   else if(choice==4){
        System.out.println("Enter first number");
        double num1 = Input.nextDouble();
        System.out.println("Enter Second number");
        double num2 = Input.nextDouble();
        double product = num1*num2;
        System.out.println("product= " + product);
        }
       else{
            System.out.println("invalid");
       }
    }
}
Categories
Java

Do While Loop in Java

I wrote this simple program to demonstrate how to declare and use do while loop statement using Java programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.


Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.


My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com
I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Sample Program Output

Program Listing

Do_While_Loop.java


public class Do_While_Loop {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		   System.out.println();
		   System.out.print("\tDo While Loop in Java");
		   System.out.println("\n");
		   int i=1;  
		   System.out.print("\t");
		    do{  
		        System.out.print(" " +i+" ");  
		    i++;  
		    }while(i<=10);  
	}

}
Categories
Java

Compound Interest Solver in Java

I wrote this program will ask the user to give the principal amount to be a loan, a number of years to be paid the loan and the interest rate and then the program computes the compound interest based on the amount being loan by the customer or client.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.
My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com

I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Sample Program Program Output


My video tutorial on my YouTube channel.

Program Listing

Compound_Interest.java


import java.util.*;


public class Compound_Interest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		
       double principal=0.00, rate=0.00, t=0.00;
       double compound_solve=0.00;
       
       Scanner input = new Scanner(System.in);
       
       System.out.println("\n");
       System.out.print("\tCompound Interest Solver in Java");
       System.out.println("\n");
       System.out.print("\tGive the Amount  $        : ");
       principal = input.nextDouble();
       System.out.print("\tGive the Number of Years  : ");
       t = input.nextDouble();
       System.out.print("\tGive the Interest Rate    : ");
       rate = input.nextDouble();
       
       compound_solve = principal * Math.pow(1.0+rate/100.0,t) - principal;
       
       System.out.println("\n");
       System.out.print("\tThe Compound Interest is $" +compound_solve+".");
       System.out.println("\n");
       System.out.print("\tEnd of Prorgam");
       System.out.println("\n");
        
       
       
	}

}
Categories
Java

Interface in Java

I wrote this program to demonstrate how to declare and use the interface statement using the Java programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.


Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.


My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com

I am also a book author you can purchase my books on computer programming and information technology in the following links below.

https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Sample Program Output


My video tutorials in my YouTube channel.

Program Listing

Interface_Demo.java


interface info {
	static final String language ="Java Programming";
	
	public void display();
}


public class Interface_Demo implements info {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Interface_Demo object = new Interface_Demo(); 
        object.display();
	}
	
	// Define method declared in the interface
	
	public void display() {
	   System.out.println("\n\n");
  	   System.out.print("\tInterface Program in Java");
		System.out.println("\n\n");
		System.out.println("\t" +language + " is Fun and Easy.");
	}

}

Categories
Java

Primer Number Generator in Java

I wrote this program to ask the user to give a number and then the program will list down the prime numbers on the screen using Java programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.


Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.


My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com

I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Sample Program Output
My video tutorial in my YouTube channel.

Program Listing

Prime_Number_Generator.java

import java.util.Scanner;

// Written By Jake R.Pomperada,MAED-IT
// January 4, 2020   Saturday
// jakerpomperada@gmail.com
// Bacolod City, Negros Occidental Philippines

public class Prime_Number_Generator {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Scanner Input = new Scanner(System.in);
		
		System.out.println();
		System.out.println("\tPrimer Number Generator in Java");
		System.out.println();
		System.out.print("\tGive a Number : ");
		int num = Input.nextInt();
		System.out.println("\n");
		System.out.print("\tList of Prime Numbers");
		System.out.println("\n");
		System.out.print("\t");
		for (int i = 2; i <= num; i++){
			if (IsPrime(i)){
				System.out.print(i+" ");
			}
		}
	}

	private static boolean IsPrime(int num) {
		boolean flag = true;
		
		for (int i=2; i<num/2; i++){
			if (num % i == 0){
				flag = false;
				break;
			}
		}
		return flag;
	}
	
}
Categories
Java

List of Alphabets in Java

Here is a sample program to display the alphabets on the screen using Java programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.


Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.


My personal website is http://www.jakerpomperada.comMy programming website is http://www.jakerpomperada.blogspot.com


I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Sample Program Output



My video tutorial on my YouTube Channel




Program Listing

Alphabets_Example.java

public class Alphabets_Example {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
      System.out.println("\n");
      System.out.println("\tList of Alphabets in Java");
      System.out.println("\n");
      
      for (char ch='A'; ch<='Z'; ch++) {
    	  System.out.print(" " + ch + " ");
      }
      
      System.out.println("\n");
      System.out.println("\tEnd of Program");
	}

}
Categories
Java

Average of Three Numbers in Java

I wrote this simple program to ask the user to give three numbers and then the program will compute the average of the three given numbers using Java programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.

Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.
My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com
I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

Sample Program Output


My video tutorial in my YouTube Channel

Program Listing

average_value.java

import java.util.Scanner;

public class average_value {

/**
 * @param args
 */
public static void main(String[] args) {
    // TODO Auto-generated method stub

    Scanner input = new Scanner(System.in);

    int a=0,b=0,c=0;
    int sum=0,average=0;

    System.out.println("\n");
    System.out.println("\tAverage of Three Numbers in Java");
    System.out.println("\n");
    System.out.print("\tEnter First Value  : ");
    a = input.nextInt();
    System.out.print("\tEnter Second Value : ");
    b = input.nextInt();
    System.out.print("\tEnter Third Value  : ");
    c = input.nextInt();

    sum = (a+b+c);

    average = (sum/3);

    System.out.println();
    System.out.print("\tThe Total Average is " + average + ".");
    System.out.println("\n");
    System.out.println("\tEnd of the Program");

  }
}

Categories
Java

Reverse a String in Java

I wrote this program to ask the user to give a string and then the program will reverse the given string using Java as my programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.
Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.
My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com

I am also a book author you can purchase my books on computer programming and information technology in the following links below.
https://www.mindshaperspublishing.com/
https://www.unlimitedbooksph.com/

My video tutorial of Reverse a String in Java in my YouTube Channel
Sample Program Output

Program Listing

ReverseString.java

import java.util.*;

class ReverseString {

    public static void main(String args[]) {
        String original, reverse = "";
        int i=0;
        Scanner input = new Scanner(System.in);

        System.out.println();
        System.out.println("\tReverse a String in Java");
        System.out.println();
        System.out.print("\tGive a String to Reverse : ");
        original = input.nextLine();

        int length = original.length();
        System.out.println();
        for (i = length-1; i >= 0;  i--) 
             reverse = reverse + original.charAt(i);
        System.out.println("\tThe reverse string is " + reverse +".");
        
       System.out.print("\n\n");
       System.out.print("\tEnd of Program");
       System.out.println();
    }
}
Categories
Java

Payroll Program Sorting Salary in Descending Order in Java

A simple payroll program that I wrote using Java that uses a one-dimensional array and it’s sorted the salary in descending order. 

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.


My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is  +63 (034) 4335675.


Here in Bacolod City, Negros Occidental I also accepting computer repair, networking and Arduino Project development at a very affordable price.


My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com


I am also a book author you can purchase my books on computer programming and information technology in the following links below.


https://www.mindshaperspublishing.com/

https://www.unlimitedbooksph.com/

Sample Program Output

Program Listing

package test;

import java.util.Scanner;

public static void main(String[] args) {
     Scanner input = new Scanner (System.in);
      int employees = 0;
      int num = 6; 
      int n, temp;
      int[] grossPay  = new int[100];
      //arrays
      String[] names = new String [100];
      int[] days = new int[100];
      int[] rate = new int[100];
      int[] wages;
      //scanner
       Scanner keyboard = new Scanner(System.in);
        System.out.println( "WELCOME TO THE PAYROLL SYSTEM");
        System.out.println("");
           for (int i = 1; i == 1;)
       {
         System.out.println( "Enter the Name of Employee :");
         names[employees] = keyboard.next();


         System.out.println( "Enter the rate for Employee : ");
         rate[employees] = keyboard.nextInt();


         System.out.println( "Enter the days worked for Employee : ");
         days[employees] = keyboard.nextInt();

         System.out.println("Do you want to enter again your employees? [1-Yes / 2-No] : ");
          i = input.nextInt();
          employees++;
      }
 System.out.println( "Here is the gross pay for each employee:");
      for (int i = 0; i < employees; i++)
      {
        grossPay[i] = days[i] * rate[i];
        if ( grossPay[i] < 10000 )
         {
          System.out.println("The gross pay for " + names[i] +
                            ": $" + grossPay[i] + ". Less than 10k");
         }
         else{
          System.out.println("The gross pay for " + names[i] +
                            ": $" + grossPay[i] + ". Greater than 10k");
        }

      }
    // Bubble Sort of Gross Pay of the Employees here
      for (int i = 0; i < employees; i++) 
        {
            for (int j = i + 1; j < employees; j++) 
            {
                if (grossPay[i] < grossPay[j]) 
                {
                    temp = grossPay[i];
                    grossPay[i] = grossPay[j];
                    grossPay[j] = temp;
                }
            }
        }
        System.out.print("\n\n");
        System.out.print("Descending Order of the Salaries of the Employees");
        System.out.print("\n\n");
        for (int i = 0; i < employees - 1; i++) 
        {
            System.out.print(grossPay[i] + ",");
        }
        System.out.print(grossPay[employees - 1]);

}

public class hello {

} // End of Code