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import java.io.*;

import java.util.*;

public class Calculator

{

public static void main(String args[])

{

System.out.println("Make your arithmetic selection from the choices below:\n");

System.out.println(" 1. Addition");

System.out.println(" 2. Subtraction");

System.out.println(" 3. Multiplication");

System.out.println(" 4. Division\n");

System.out.print(" Your choice? ");

Scanner kbReader = new Scanner(System.in);

int choice = kbReader.nextInt();

if((choice<=4) && (choice>0))

{

System.out.print("\nEnter first operand. ");

double op1 = kbReader.nextDouble();

System.out.print("\nEnter second operand.");

double op2 = kbReader.nextDouble();

System.out.println("");

switch (choice)

{

case 1: //addition

System.out.println(op1 + " plus " + op2 + " = " + (op1 + op2) );

break;

case 2: //subtraction

System.out.println(op1 + " minus " + op2 + " = " + (op1 - op2) );

break;

case 3: //multiplication

System.out.println(op1 + " times " + op2 + " = " + (op1 * op2) );

break;

case 4: //division

System.out.println(op1 + " divided by " + op2 + " = " + (op1 / op2) );

}

}

else

{

System.out.println("Please enter a 1, 2, 3, or 4.");

}

}

}

Read more: How_do_you_make_calculator_program_in_java

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Q: How do you make a scientific calculator program in java?
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