Day - 9 - Java Implementation (#101)

* Update @chaitanya-bhojwani as a contributor

* Java Implementation

Author: chaitanya-bhojwani

.all-contributorsrc

@@ -193,6 +193,16 @@
         "doc"
       ]
     },
+    {
+      "login": "chaitanya-bhojwani",
+      "name": "Chaitanya Bhojwani",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/26464695?v=4",
+      "profile": "https://github.com/chaitanya-bhojwani",
+      "contributions": [
+        "doc",
+        "code"
+      ]
+    },
     {
       "login": "manaswinidas",
       "name": "Manaswini Das",
@@ -203,4 +213,4 @@
       ]
     }
   ]
-}
+}

CONTRIBUTORS.md

@@ -9,7 +9,7 @@ Thanks goes to these wonderful people ([emoji key](https://github.com/kentcdodds
 | [<img src="https://avatars2.githubusercontent.com/u/26179770?v=4" width="100px;"/><br /><sub><b>MADHAV BAHL</b></sub>](http://madhavbahl.tech/)<br />[💻](https://github.com/CodeToExpress/dailycodebase/commits?author=MadhavBahlMD "Code") [📝](#blog-MadhavBahlMD "Blogposts") [📖](https://github.com/CodeToExpress/dailycodebase/commits?author=MadhavBahlMD "Documentation") [🎨](#design-MadhavBahlMD "Design") [✅](#tutorial-MadhavBahlMD "Tutorials") | [<img src="https://avatars2.githubusercontent.com/u/32531173?v=4" width="100px;"/><br /><sub><b>Rajdeep Roy Chowdhury</b></sub>](http://www.linkedin.com/in/razdeeproychowdhury)<br />[💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Razdeep "Code") [📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Razdeep "Documentation") [✅](#tutorial-Razdeep "Tutorials") | [<img src="https://avatars1.githubusercontent.com/u/16208722?v=4" width="100px;"/><br /><sub><b>Hrishi</b></sub>](https://hrishi1999.github.io)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Hrishi1999 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Hrishi1999 "Code") | [<img src="https://avatars1.githubusercontent.com/u/33101287?v=4" width="100px;"/><br /><sub><b>Bhanu Ailani</b></sub>](https://github.com/Bhanu0202)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Bhanu0202 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Bhanu0202 "Code") | [<img src="https://avatars3.githubusercontent.com/u/35690440?v=4" width="100px;"/><br /><sub><b>Deepak Sharma</b></sub>](https://sourcerer.io/dsdsharma)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=dsdsharma "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=dsdsharma "Code") | [<img src="https://avatars2.githubusercontent.com/u/28749866?v=4" width="100px;"/><br /><sub><b>Ramanpreet Singh</b></sub>](https://github.com/Ramanpreet6262)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Ramanpreet6262 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Ramanpreet6262 "Code") | [<img src="https://avatars1.githubusercontent.com/u/27620628?v=4" width="100px;"/><br /><sub><b>Anil Khatri</b></sub>](https://imkaka.github.io/)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=imkaka "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=imkaka "Code") |
 | :---: | :---: | :---: | :---: | :---: | :---: | :---: |
 | [<img src="https://avatars0.githubusercontent.com/u/39827514?v=4" width="100px;"/><br /><sub><b>Ashwek Swamy</b></sub>](https://github.com/ashwek)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=ashwek "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=ashwek "Code") | [<img src="https://avatars1.githubusercontent.com/u/32368107?v=4" width="100px;"/><br /><sub><b>Dhruv Gupta</b></sub>](https://github.com/dhruv-gupta14)<br />[💻](https://github.com/CodeToExpress/dailycodebase/commits?author=dhruv-gupta14 "Code") | [<img src="https://avatars0.githubusercontent.com/u/30969577?v=4" width="100px;"/><br /><sub><b>Aadit Kamat</b></sub>](https://sg.linkedin.com/in/aadit-kamat-12a5a8140)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=aaditkamat "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=aaditkamat "Code") | [<img src="https://avatars1.githubusercontent.com/u/20285786?v=4" width="100px;"/><br /><sub><b>Shashank jain</b></sub>](http://www.myshashank.tech)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Shashankjain12 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Shashankjain12 "Code") | [<img src="https://avatars3.githubusercontent.com/u/22260031?v=4" width="100px;"/><br /><sub><b>Moulik Aggarwal</b></sub>](https://github.com/moulikcipherX)<br />[💬](#question-moulikcipherX "Answering Questions") [📝](#blog-moulikcipherX "Blogposts") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=moulikcipherX "Code") [📖](https://github.com/CodeToExpress/dailycodebase/commits?author=moulikcipherX "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/21277179?v=4" width="100px;"/><br /><sub><b>Prateek Surana</b></sub>](http://prateeksurana.me)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=prateek3255 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=prateek3255 "Code") | [<img src="https://avatars2.githubusercontent.com/u/43927436?v=4" width="100px;"/><br /><sub><b>shivank86</b></sub>](https://github.com/shivank86)<br />[💻](https://github.com/CodeToExpress/dailycodebase/commits?author=shivank86 "Code") |
-| [<img src="https://avatars2.githubusercontent.com/u/25405726?v=4" width="100px;"/><br /><sub><b>Vishal Shirke</b></sub>](https://github.com/vishalshirke7)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=vishalshirke7 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=vishalshirke7 "Code") | [<img src="https://avatars1.githubusercontent.com/u/25369498?v=4" width="100px;"/><br /><sub><b>profgrammer</b></sub>](https://github.com/profgrammer)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=profgrammer "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=profgrammer "Code") | [<img src="https://avatars1.githubusercontent.com/u/26656036?v=4" width="100px;"/><br /><sub><b>divyakhetan</b></sub>](https://github.com/divyakhetan)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=divyakhetan "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=divyakhetan "Code") | [<img src="https://avatars0.githubusercontent.com/u/36483814?v=4" width="100px;"/><br /><sub><b>Spreeha Dutta</b></sub>](https://github.com/Spreeha)<br />[💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Spreeha "Code") [📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Spreeha "Documentation") | [<img src="https://avatars0.githubusercontent.com/u/22885912?v=4" width="100px;"/><br /><sub><b>Manaswini Das</b></sub>](https://www.linkedin.com/in/manaswini-das/)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=manaswinidas "Documentation") |
+| [<img src="https://avatars2.githubusercontent.com/u/25405726?v=4" width="100px;"/><br /><sub><b>Vishal Shirke</b></sub>](https://github.com/vishalshirke7)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=vishalshirke7 "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=vishalshirke7 "Code") | [<img src="https://avatars1.githubusercontent.com/u/25369498?v=4" width="100px;"/><br /><sub><b>profgrammer</b></sub>](https://github.com/profgrammer)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=profgrammer "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=profgrammer "Code") | [<img src="https://avatars1.githubusercontent.com/u/26656036?v=4" width="100px;"/><br /><sub><b>divyakhetan</b></sub>](https://github.com/divyakhetan)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=divyakhetan "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=divyakhetan "Code") | [<img src="https://avatars0.githubusercontent.com/u/36483814?v=4" width="100px;"/><br /><sub><b>Spreeha Dutta</b></sub>](https://github.com/Spreeha)<br />[💻](https://github.com/CodeToExpress/dailycodebase/commits?author=Spreeha "Code") [📖](https://github.com/CodeToExpress/dailycodebase/commits?author=Spreeha "Documentation") | [<img src="https://avatars0.githubusercontent.com/u/26464695?v=4" width="100px;"/><br /><sub><b>Chaitanya Bhojwani</b></sub>](https://github.com/chaitanya-bhojwani)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=chaitanya-bhojwani "Documentation") [💻](https://github.com/CodeToExpress/dailycodebase/commits?author=chaitanya-bhojwani "Code") | [<img src="https://avatars0.githubusercontent.com/u/22885912?v=4" width="100px;"/><br /><sub><b>Manaswini Das</b></sub>](https://www.linkedin.com/in/manaswini-das/)<br />[📖](https://github.com/CodeToExpress/dailycodebase/commits?author=manaswinidas "Documentation") |
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors](https://github.com/kentcdodds/all-contributors) specification. Contributions of any kind are welcome!

day9/Java/smallest_substring.java

@@ -0,0 +1,54 @@
+/**
+        * @author: <chaitanya-bhojwani>
+        * @date: <01-01-2019>
+ **/
+
+import java.util.*;
+class smallest_substring {
+	static int checker(String st_check, char[] ch){
+		int result = 0;
+		for(char c:ch){
+			if(st_check.contains(c+"")){
+				result = 1;
+			}
+			else{
+				result = 0;
+				break;
+			}
+		}
+		return result;
+	}
+	public static void main(String args[]) {
+		System.out.println("---------Daily Codes - Day 9 ---------------");
+		System.out.println("---Smallest Substring Problem---");
+		System.out.println("Enter the length of character array: ");
+		Scanner sc = new Scanner(System.in);
+		int length = sc.nextInt();
+		int smallest_length = 999;
+		String smallest_subs = "";
+		char[] ch = new char[length];
+		System.out.println("Enter elements of character array: ");
+		for(int i=0;i<length;i++) {
+			ch[i] = sc.next().charAt(0);
+		}
+		System.out.println("Enter the String to Check: ");
+		String str = sc.next();
+		for (int i = 0; i < str.length(); i++) {
+			for (int j = i+1; j <= str.length(); j++) {
+				int str_check = checker(str.substring(i,j),ch);
+				if(str_check == 1){
+					if(str.substring(i,j).length()<smallest_length){
+						smallest_length = str.substring(i,j).length();
+						smallest_subs = str.substring(i,j);
+					}
+				}
+			}
+		}
+		if(smallest_subs.equals("")){
+			System.out.println("Smallest Substring: " + "No Such Substring possible");
+		}
+		else {
+			System.out.println("Smallest Substring: " + smallest_subs);
+		}
+}
+}