Console Calc
2 posters
Page 1 of 1
Whats Your Favorite Team?
Console Calc
by Petahwil Fri Nov 30, 2012 7:18 pm
We Are Trying To Make This Into A Complex Calculator Application Post Your Ideas & Ways To Improve It!!
Remember To Vote!!
^^^^^ XD!!
Remember To Vote!!
^^^^^ XD!!- Code:
import java.util.Scanner;
/**
*
* @author Petahwil
*/
public class ConsoleCalc {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
System.out.println("Petahwil");
Scanner in = new Scanner (System.in);
System.out.print("Enter a Expression: ");
String expression = in.next();
String save = expression;
String num1 = "";
String num2= "";
String operator = "";
int result = 0;
boolean done = false;
boolean error = false;
for(int i = 0; i < expression.length(); i++)
{
if(expression.charAt(i) >= '0' && expression.charAt(i) <= '9')
{
if (done == false)
{
num1 = num1 +""+ expression.charAt(i);
}
else
{
num2 = num2 +""+ expression.charAt(i);
}
}
else
{
if (expression.charAt(i) == '+' || expression.charAt(i) == '-'
|| expression.charAt(i) == '*'
||expression.charAt(i) == '/')
{
done = true;
operator = "" + expression.charAt(i);
}
else
{
error = true;
System.out.print("Wrong Format"); break;
}
}
}
if (error == false)
{
if (operator.equals("+"))
{
result = Integer.valueOf(num1) + Integer.valueOf(num2);
}
else if (operator.equals("-"))
{
result = Integer.valueOf(num1) - Integer.valueOf(num2);
}
else if (operator.equals("*"))
{
result = Integer.valueOf(num1) * Integer.valueOf(num2);
}
else if (operator.equals("/"))
{
result = Integer.valueOf(num1) / Integer.valueOf(num2);
}
save += " = "+result;
System.out.print(save);
}
}
}
Last edited by ThienDinh on Sun Dec 02, 2012 5:59 pm; edited 2 times in total (Reason for editing : Put code in [code] tag)
Petahwil- Posts : 8
Join date : 2012-11-30
Age : 31
ThienDinh- Admin
- Posts : 27
Join date : 2012-11-30 -
Console Calc
by Petahwil Fri Nov 30, 2012 7:31 pm
Basketball teams haha!! Thats why there is a guy haha!! It said to write Break after it and it is showing it now so idk what it is doing that lol and wont let me re-edit it!
guy haha!! It said to write Break after it and it is showing it now so idk what it is doing that lol and wont let me re-edit it!
Petahwil- Posts : 8
Join date : 2012-11-30
Age : 31
Re: Console Calc
by ThienDinh Fri Nov 30, 2012 7:35 pm
You should be able to edit ur message. I checked the permission and it allows member to edit their own messages.
ThienDinh- Admin
- Posts : 27
Join date : 2012-11-30 -
Console Calc
by Petahwil Fri Nov 30, 2012 7:49 pm
It Lets me Just not the pole is showed up the first time but now it doesn't its not big deal just know that the break is irrelevant lol
Petahwil- Posts : 8
Join date : 2012-11-30
Age : 31
ThienDinh- Admin
- Posts : 27
Join date : 2012-11-30 -
Re: Console Calc
by Petahwil Sun Dec 02, 2012 5:57 pm
Boom! 
- Code:
import java.util.Scanner;
/**
*
* @author Petahwil
*/
public class ConsoleCalc {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
System.out.println("Petahwil");
Scanner in = new Scanner(System.in);
System.out.print("Enter a Expression: ");
String expression = in.next();
String save = expression;
String num1 = "";
String num2 = "";
String operator = "";
int result = 0;
boolean done = false;
boolean error = false;
for (int i = 0; i < expression.length(); i++) {
if (expression.charAt(i) >= '0' && expression.charAt(i) <= '9') {
if (done == false) {
num1 = num1 + "" + expression.charAt(i);
} else {
num2 = num2 + "" + expression.charAt(i);
}
} else {
if (expression.charAt(i) == '+' || expression.charAt(i) == '-'
|| expression.charAt(i) == '*'
|| expression.charAt(i) == '/') {
done = true;
operator = "" + expression.charAt(i);
} else {
error = true;
System.out.print("Wrong Format");
break;
}
}
}
if (error == false) {
if (operator.equals("+")) {
result = Integer.valueOf(num1) + Integer.valueOf(num2);
} else if (operator.equals("-")) {
result = Integer.valueOf(num1) - Integer.valueOf(num2);
} else if (operator.equals("*")) {
result = Integer.valueOf(num1) * Integer.valueOf(num2);
} else if (operator.equals("/")) {
result = Integer.valueOf(num1) / Integer.valueOf(num2);
}
save += "=" + result;
System.out.print(save);
}
expression = in.next();
while (expression.equals("q") == false) {
operator = "" + expression.charAt(0);
num1 = "";
for (int i = 1; i < expression.length(); i++) {
num1 += "" + expression.charAt(i);
}
if (operator.equals("+")) {
result += Integer.valueOf(num1);
} else if (operator.equals("-")) {
result -= Integer.valueOf(num1);
} else if (operator.equals("*")) {
result *= Integer.valueOf(num1);
} else if (operator.equals("/")) {
result /= Integer.valueOf(num1);
}
save += expression + "=" + result;
System.out.print(save);
expression = in.next();
}
}
}
Petahwil- Posts : 8
Join date : 2012-11-30
Age : 31
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
» Sync2 V2.20.1312 X86x64.rar.rar
» 9.1 Inheritance Hierarchies
» Useful website
» The Machine that Changed the World: Giant Brains. 1992 Documentary
» Problems in practice test.
» Newton's Method
» Console Calc
» Law Of Cosines