Create a scientific calculator using Java, Java Scientific Calculator, e.g logarithm, Factorial, etc.

Java Scientific Calculator Program

In the following program we uses a package called import java.util.*; The output of the program shown below:

   
 
    /*;==========================================
; Title: create a Java scientific calculator
; Author: codenaive littleboy8506@   
; Date:   13 Dec 2021
;==========================================*/
import java.util.*;
interface Defination
{   public void Add();
 public void Sub();
 public void Multi();
 public void SinValue();
    public void CosValue();
 public void TanValue();
 public void LogValue();
 public void Factorial();
 public void Swap();
 public void SquareRoot();
}
class Operation implements Defination 
{   public void Add()
 {   
  Scanner obj = new Scanner(System.in);
  int input,total=0;
  System.out.println("Enter The Range Of Number For Addition : ");
  try{
  input=obj.nextInt();
  
     int[] range=new int [input];
  for(int i=0;iinput)
  
    Total=input-input2;
    System.out.println("The Subtraction of "+input2+" - "+input+" is : "+Total);
  
    /*else
       Total=input-input2;
    System.out.println("The Subtraction of "+input+" - "+input2+" is : "+Total);*/
 }
 public void Multi()
 {   int i,Total=1,input;
  Scanner obj = new Scanner(System.in);
  System.out.println("Enter The Range Of Number For Multiplcation : ");
   input=obj.nextInt();
   int[] range=new int [input];
  for(i=0;i\nEnter The Number : ");
   input =obj.nextDouble();
   output = Math.log10(input);
   System.out.println("The Value of Log10("+input+") is "+output);
 }
 public void Factorial()
 {   System.out.println("Find a Factorial, Enter The Number : ");
  Scanner obj= new Scanner(System.in);
  long  input=obj.nextInt();
  long  factorial=1;
  for(long j=input;j>=1;j--)
  {
   factorial=factorial*j;
  }
  System.out.println("The Factorial OF "+input+" is "+factorial);
 }
 public void Swap()
 {   System.out.println(" Enter The Two Number : ");
  Scanner obj= new Scanner(System.in);
  System.out.print("Enter The Value Of A : ");
  int input=obj.nextInt();
  System.out.print("Enter The Value Of B : ");
  int input2=obj.nextInt();
  input =input+input2;
  input2=input-input2;
  input = input-input2;
  System.out.println("The Value Of A : "+input+"\nThe Value Of B : "+input2);
 }
 public void SquareRoot()
 {     Scanner obj=new Scanner(System.in);
    System.out.print("Enter The Number For SquareRoot Value ");
    double input =obj.nextInt();
    double output = Math.sqrt(input);
    System.out.println("The squareRoot value of "+input+" is "+output);
 }
}
class Choice extends Operation
{
public void Disp()
   { 
    Scanner obj=new Scanner(System.in);
    loop: while(true)
      {
 System.out.println("\n\nPlease Chose The operation :\n");
 System.out.println(" 1. Addition");
 System.out.println(" 2. Subtraction");
 System.out.println(" 3. Multiplication");
 System.out.println(" 4. Value Of Sin");
    System.out.println(" 5. Value Of Cos");
 System.out.println(" 6. Value Of Tan");
 System.out.println(" 7. Value Of Log");
 System.out.println(" 8. Factorial");
 System.out.println(" 9. Swaping");
 System.out.println(" 10.SquareRoot");
 System.out.println(" 11.Exit\n");
 System.out.print("Enter The choice Number : ");
 int input =obj.nextInt();
 switch(input)
         {     case 1:
     Add();
         break ;
       case 2:
          Sub();
         break;
       case 3:
         Multi();
      break;
       case 4:
      SinValue();
     break;
       case 5:
         CosValue();
      break;
    case 6:
       TanValue();
       break;
    case 7:
        LogValue();
     break;
     case 8:
      Factorial();
       break;
    case 9:
       Swap();
       break;
    case 10:
       SquareRoot();
       break;
    case 11:
       break loop;
        default :
      System.out.println("!Please Enter  Valid Number !");
    }
     } 
 }
}
public class Calculator
{
 public static void main(String[] arg)
 {
  Choice obj=new Choice();
  obj.Disp();
 }
}

Output:

Console Output