solved errors

1 files changed, 266 insertions, 0 deletions

diff --git a/Programming_With_Java_A_Primer/.ipynb_checkpoints/chapter13-checkpoint.ipynb b/Programming_With_Java_A_Primer/.ipynb_checkpoints/chapter13-checkpoint.ipynb
new file mode 100755
index 00000000..28830641
--- /dev/null
+++ b/Programming_With_Java_A_Primer/.ipynb_checkpoints/chapter13-checkpoint.ipynb
@@ -0,0 +1,266 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:5b64344dd4b10e210167de1e2d127d9539461b4485363c51a2c3ddba9df7db38"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 13: Managing Errors & Exceptions"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 13.1, page no. 231"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\"\"\"\n",
+      "there is no need of semicolon. We will show error for something else\n",
+      "\"\"\"\n",
+      "\n",
+      "print \"Hello Python...\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Hello Python...\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 13.2, page no. 232"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "a = 10\n",
+      "b = 5\n",
+      "c = 5\n",
+      "x = a/(b-c) #It will show ZeroDivisionError\n",
+      "print \"x = \", x\n",
+      "y = a/(b+c)\n",
+      "print \"y = \", y"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "ename": "ZeroDivisionError",
+       "evalue": "division by zero",
+       "output_type": "pyerr",
+       "traceback": [
+        "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[0;31mZeroDivisionError\u001b[0m                         Traceback (most recent call last)",
+        "\u001b[0;32m<ipython-input-5-9289236a4a07>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      3\u001b[0m \u001b[0mb\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;36m5\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      4\u001b[0m \u001b[0mc\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;36m5\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 5\u001b[0;31m \u001b[0mx\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0ma\u001b[0m\u001b[0;34m/\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m-\u001b[0m\u001b[0mc\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      6\u001b[0m \u001b[0;32mprint\u001b[0m \u001b[0;34m\"x = \"\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mx\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      7\u001b[0m \u001b[0my\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0ma\u001b[0m\u001b[0;34m/\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m+\u001b[0m\u001b[0mc\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+        "\u001b[0;31mZeroDivisionError\u001b[0m: division by zero"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 13.3 page no : 235"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "a = 10\n",
+      "b = 5\n",
+      "c = 5\n",
+      "try:\n",
+      "    x = a/(b-c)\n",
+      "except Exception,e :\n",
+      "    print \"Division by zero\"\n",
+      "y = a/(b+c)\n",
+      "print \"y = \",y"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Division by zero\n",
+        "y =  1\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 13.4 page no : 236"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "import sys\n",
+      "invalid = 0\n",
+      "count = 0\n",
+      "for i in sys.argv:\n",
+      "    try:\n",
+      "        a = int(i)\n",
+      "    except:\n",
+      "        invalid += 1\n",
+      "        print \"Invalid number\" , i\n",
+      "        continue\n",
+      "    count += 1\n",
+      "\n",
+      "print \"Valid Numbers : \" ,count\n",
+      "print \"Invalid numbers \",invalid\n",
+      "        "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " Invalid number -c\n",
+        "Invalid number -f\n",
+        "Invalid number /tmp/tmp1tOqar/profile_default/security/kernel-082ebfe6-5650-4ba4-8bcf-cd17bc99af7a.json\n",
+        "Invalid number --IPKernelApp.parent_appname='ipython-notebook'\n",
+        "Invalid number --profile-dir\n",
+        "Invalid number /tmp/tmp1tOqar/profile_default\n",
+        "Invalid number --parent=1\n",
+        "Valid Numbers :  0\n",
+        "Invalid numbers  7\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 13.5, page no. 239"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "a = [5,10]\n",
+      "b = 5\n",
+      "try:\n",
+      "    x = a[2]/b - a[1]\n",
+      "except AssertionError:\n",
+      "    print \"AssertionError:\"\n",
+      "except IndexError:\n",
+      "    print \"Array Index Error\"\n",
+      "except Exception:\n",
+      "    print \"Any Error\"\n",
+      "y = a[1]/a[0]\n",
+      "print \"y = \" , y "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Array Index Error\n",
+        "y =  2\n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 13.6 page no : 239"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "x = 5\n",
+      "y = 1000\n",
+      "\n",
+      "class MyException(Exception):\n",
+      "    def __init__(self, message):\n",
+      "        Exception.__init__(self, message)\n",
+      "    def error(self):\n",
+      "        print self.message\n",
+      "\n",
+      "try:\n",
+      "    z = x/y\n",
+      "    if(z<0.01):\n",
+      "        raise MyException(\"Number is too small\")\n",
+      "except MyException, error:\n",
+      "    print \"Caught MyException\"\n",
+      "    print error.message\n",
+      "finally:\n",
+      "    print \"I am always here\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Caught MyException\n",
+        "Number is too small\n",
+        "I am always here\n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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