Calculator with GUI

Problem Statement 3/README.md

@@ -1,10 +1,12 @@
-# Problem Statement-3.
-
-
-***
-### Make a calculator with GUI
-
-
-
-***
-
+# Project Title
+Calculator with GUI for H2S
+
+# Getting started
+
+# Built in
+<ul> <li> python 3.x  <br/></li> <li> tkinter python <br/> </li> </ul>
+
+
+# Acknowledgement
+<ul> <li> Stackoverflow  <br/> </li> <li> Related blogs <br/> </li> <li> etc </li> </ul>
+

Problem Statement 3/Simple Calculator by Python.py

@@ -0,0 +1,196 @@
+
+from tkinter import *;
+from tkinter import messagebox;
+
+def actionauthor():
+    messagebox.showinfo("Author", "Pallabi")
+
+#Check if the input string is a number or not
+def is_number(s):
+    if(s != ''):
+        if (s.replace('.', '', 1).isdigit()):
+            return True
+        if (s.isdigit()):
+            return True;
+        if s[0] in ['-', '+', '.', '0', ' ']:
+            if (s[1] == '.'):
+                if (s[2:].isdigit()):
+                    return True
+            if (s[1] == '0' and s[2] == '.'):
+                if (s[3:].isdigit()):
+                    return True
+            if s[1:].isdigit():
+                return True;
+        return False;
+
+def casting(num):
+    if('.' in num):
+        return float(num);
+    else:
+        return int(num)
+
+
+#Plus sign function
+def actionPlus():
+    Showtemplabel.delete(0, END);
+    Showlabel.delete(0, END)
+
+    Showtemplabel.config(fg='red', bg='#9ed8ee')
+    Showtemplabel.insert(0, 'Summation');
+    Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+    ans = "0";
+    Showlabel.insert(0, ans);
+    Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+
+    num1 = Numberentry1.get();
+    num2 = Numberentry2.get();
+
+    if(is_number(num1) == True and is_number(num2) == True and num1 != ' ' and num2 != ' '):
+        num1 = casting(num1);
+        num2 = casting(num2);
+        ans = str(num1 + num2);
+
+        Showtemplabel.delete(0, END);
+        Showlabel.delete(0, END)
+
+        Showtemplabel.config(fg='red', bg='#9ed8ee')
+        Showtemplabel.insert(0, 'Summation');
+        Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+        Showlabel.insert(0, ans);
+        Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+    else:
+        messagebox.showerror("Error", "Enter a Valid number\ne.g. 123, 0.123, .123, -0.123, 123.456")
+
+#Minus sign function
+def actionMinus():
+    Showtemplabel.delete(0, END);
+    Showlabel.delete(0, END)
+
+    Showtemplabel.config(fg='green', bg='#ece7e2')
+    Showtemplabel.insert(0, 'Subtraction');
+    Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+    ans = "0";
+
+    Showlabel.insert(0, ans);
+    Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+
+    num1 = Numberentry1.get();
+    num2 = Numberentry2.get();
+
+    if(is_number(num1)==True and is_number(num2)==True):
+        num1 = casting(num1);
+        num2 = casting(num2);
+        ans = str(num1 - num2);
+
+        Showtemplabel.delete(0, END);
+        Showlabel.delete(0, END)
+
+        Showtemplabel.config(fg='green', bg='#ece7e2')
+        Showtemplabel.insert(0, 'Subtraction');
+        Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+        Showlabel.insert(0, ans);
+        Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+    else:
+        messagebox.showerror("Error", "Enter a Valid number\ne.g. 123, 0.123, .123, -0.123, 123.456")
+
+#Multiplication sign function
+def actionMul():
+    Showtemplabel.delete(0, END);
+    Showlabel.delete(0, END)
+
+    Showtemplabel.config(fg='blue', bg='#cacba9')
+    Showtemplabel.insert(0, 'Multiplication');
+    Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+    ans = "0"
+
+    Showlabel.insert(0, ans);
+    Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+
+    num1 = Numberentry1.get();
+    num2 = Numberentry2.get();
+    if(is_number(num1)==True and is_number(num2)==True):
+        num1 = casting(num1);
+        num2 = casting(num2);
+        ans = str(num1 * num2);
+
+        Showtemplabel.delete(0, END);
+        Showlabel.delete(0, END)
+
+        Showtemplabel.config(fg='blue', bg='#cacba9')
+        Showtemplabel.insert(0, 'Multiplication');
+        Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+        Showlabel.insert(0, ans);
+        Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+    else:
+        messagebox.showerror("Error", "Enter a Valid number\ne.g. 123, 0.123, .123, -0.123, 123.456")
+
+#Division sign function
+def actionDiv():
+    Showtemplabel.delete(0, END);
+    Showlabel.delete(0, END)
+
+    Showtemplabel.delete(0, END);
+    Showlabel.delete(0, END)
+
+    Showtemplabel.config(fg='yellow', bg='#8dad96')
+    Showtemplabel.insert(0, 'Division');
+    Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+    ans = "0"
+
+    Showlabel.insert(0, ans);
+    Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+
+    num1 = Numberentry1.get();
+    num2 = Numberentry2.get();
+    if(is_number(num1)==True and is_number(num2)==True):
+        num1 = casting(num1);
+        num2 = casting(num2);
+        ans = str(num1 / num2);
+
+        Showtemplabel.delete(0, END);
+        Showlabel.delete(0, END)
+
+        Showtemplabel.config(fg='yellow', bg='#8dad96')
+        Showtemplabel.insert(0, 'Division');
+        Showtemplabel.place(relx=0.5, rely=0.5, anchor='center')
+
+        Showlabel.insert(0, ans);
+        Showlabel.place(relx=0.5, rely=0.6, anchor='center')
+    else:
+        messagebox.showerror("Error", "Enter a Valid number\ne.g. 123, 0.123, .123, -0.123, 123.456")
+
+root = Tk();
+root.title('My First Python Calculator');
+root.geometry('380x300+200+250');
+Titlelabel = Label(root, fg = 'green' , font = 'none 10 bold underline' ,text = 'Python Calculator', compound = CENTER)
+Titlelabel.place(relx=0.5, rely=0.1, anchor='center')
+Showlabel = Entry(root);
+Showtemplabel = Entry(root);
+Numberentry1 = Entry(root);
+Numberentry2 = Entry(root);
+Numberentry1.place(relx=0.5, rely=0.3, anchor='center')
+Numberentry2.place(relx=0.5, rely=0.4, anchor='center')
+
+plusbutton = Button(root, text="+", width = 5, command = actionPlus);
+plusbutton.place(relx=0.1, rely=0.7)
+
+minusbutton = Button(root, text="-", width = 5, command = actionMinus);
+minusbutton.place(relx=0.3, rely=0.7)
+
+mulbutton = Button(root, text="*", width = 5, command = actionMul);
+mulbutton.place(relx=0.5, rely=0.7)
+
+divbutton = Button(root, text="/", width = 5, command = actionDiv);
+divbutton.place(relx=0.7, rely=0.7)
+
+authorbutton = Button(root, text='Author', width=6, command = actionauthor);
+authorbutton.place(relx = 0.5, rely=0.95, anchor='center');
+
+root.resizable(False, False);
+root.mainloop();