Merge pull request #1 from ambujraj/master

Merging

ArrayToArrayList.java

@@ -0,0 +1,24 @@
+import java.util.Arrays;
+import java.util.List;
+import java.util.ArrayList;
+class A{
+  public static void main(String args[])
+    { int[] arr={1,5,6,7,42,4,};
+	  System.out.println(Arrays.toString(arr));
+	  //Create Integer array bcz in List Integer works not int
+	  Integer[] i=new Integer[arr.length];
+	 //Put arr element into Integer array
+	 for(int j=0;j<arr.length;j++)
+	  { i[j]=Integer.valueOf(arr[j]);
+
+	  }
+	  //Convert List into arrayList
+ 	 ArrayList<Integer> ar=new ArrayList<>(Arrays.asList(i));
+	 ar.add(54889);
+	   System.out.println(ar);
+
+
+
+	}
+
+}

BigInteger_InJava/Demo.java

@@ -0,0 +1,33 @@
+package BigInteger_InJava;
+
+/*
+ * In JAVA the maximum size of number is 64-bit (long), including 1 signed bit.
+ * So JAVA provides BigInteger to do operations for larger values.
+ * mod, add, div, sub, multiply and etc. for arithmetic operations
+`*
+ * @uthor Jayesh Valbhani
+ */
+
+import java.math.BigInteger;
+
+public class Demo {
+    public static void main(String[] args) {
+
+        BigInteger bigNum = new BigInteger("100000000000000000000000");
+        long temp = 1235678900;
+
+        System.out.println("Added value : " + bigNum.add(BigInteger.valueOf(temp)));
+
+        System.out.println("Multiplied value : " + bigNum.multiply(BigInteger.valueOf(temp)));
+
+        System.out.println("Divided value : " + bigNum.divide(BigInteger.valueOf(temp)));
+
+        System.out.println("Subtracted value : " + bigNum.subtract(BigInteger.valueOf(temp)));
+
+        System.out.println("Mod value : " + bigNum.mod(BigInteger.valueOf(temp)));
+
+        System.out.println("GCD value : " + bigNum.gcd(BigInteger.valueOf(temp)));
+
+
+    }
+}

CONTRIBUTORS.md

@@ -1,3 +1,14 @@
+Name: [Waqar Ahmed](https://github.com/waahm7)<br/>
+Place: Pakistan<br/>
+About: Computer sceince sutdent, intrested in logical & mathematical concepts.<br/>
+Programming Language:C, C++, JAVA, Kotlin, Java<br/>
+Email: [email protected]<br/>
+
+Name: [pnjha](https://github.com/pnjha)<br/>
+Place: India<br/>
+About: Computer science student, excited about AI  and ML<br/>
+Programming Language:C, C++, JAVA, R, Python, JS, HTML, CSS<br/>
+Email: [email protected]<br/>
 
 Name: [Bardr](https://github.com/Bardr)<br/>
 Place: Poland<br/>
@@ -11,6 +22,12 @@ About: Computer Science Sophomore<br/>
 Programming Language: Python, C/C++, Java<br/>
 Email: [email protected]<br/>
 
+Name: [Benchea Alexandru](https://github.com/Aquaryus01)
+Place: Romania
+About: Computer Science student
+Programming Language: Python, C++, Angular 6, Typescript, C, PHP
+Email: [email protected]
+
 Name: [jluo117](https://github.com/jluo117)<br/>
 Place: Bay Area<br/>
 About: Software engineer student!<br/>
@@ -21,7 +38,13 @@ Name: [Santino](https://github.com/santinohu)<br/>
 Place: Netherlands<br/>
 About: Software engineer student!<br/>
 Programming Language: Python, PHP, Java, PL/SQL<br/>
-Email: [email protected]<br/>
+Email: [email protected]<br
+
+Name: [Tharuja](https://github.com/Tharuja)<br/>
+Place: Sri lanka<br/>
+About: Software engineer student!<br/>
+Programming Language: Java ,React js,C<br/>
+Email: [email protected]<br/>
 
 Name: [Rocarft](https://github.com/rocarft)<br/>
 Place: Georgia<br/>
@@ -66,6 +89,11 @@ About: I'm web developer which develop passive-income projects<br/>
 Programming Language: Php,Javascript<br/>
 Email: [email protected]<br/>
 
+Name: [Arthur Vasconcellos](https://github.com/arthursvpb)
+Place: João Pessoa, Brasil
+About: Hey! I am a computer science student from Brazil.
+Programming Language: C, Python and JavaScript.
+Email: [email protected]
 
 Name: [Adit Mehta](https://github.com/aditmehta9)<br/>
 Place: Rajkot, Gujarat<br/>
@@ -959,4 +987,95 @@ Name: [Leonardo Sena](https://github.com/leosena21)<br/>
 Place: Salvador, Brazil<br/>
 About: Computer Engineer<br/>
 Programming Language: C#, Python<br/>
-Email: [email protected]<br/>
+Email: [email protected]<br/>
+
+
+Name: [Austin ZUniga](https://github.com/AustinZuniga)
+Place: Manila,Philippines
+About: Backend Developer
+Programming Language: Python, C, C++, php
+Email: [email protected]
+
+
+Name: [M4l2tIlV](https://github.com/M4l2tIlV)<br/>
+Place: Around the World<br/>
+About: Developer <br/>
+Programming Language: JAVA, PYTHON, JS, PHP<br/>
+
+
+Name: [LCaleb Conrad](https://github.com/ccconrad)<br/>
+Place: Ohio, United States.
+About: Programmer and avid drinker. 
+Programming Language: C#, C++
+
+
+Name:[Himanshu Thanna](https://github.com/himanshuthanna)
+Place:Delhi,India
+About:TCS Employee
+Programming language:Java,C
+
+
+
+Name: [sakshi pareek](https://github.com/sakshipareek)</br>
+Place: Rajasthan, India</br>
+About: student </br>
+Programming language: python,java</br>
+Email: [email protected]</br>
+
+Name: [Gargi](https://github.com/gsrajadh)<br/>
+Place: Atlanta, USA<br/>
+About: Software Developer<br/>
+Programming Language: Go, Python<br/>
+Email: [email protected]<br/>
+
+Name: [Rupna Maitra](https://github.com/zonex909)<br/>
+Place: Kolkata , West bengal , india<br/>
+About: Retired software developer<br/>
+Programming Language: C#, Python , ruby , lisp , cpp<br/>
+Email: [email protected]<br/>
+
+Name: [Rafael Julio](https://github.com/h4ndshake)
+Place: São Paulo, Brazil
+About: Computer Engineer
+Programming Language: C/C++, Arduino, Web, .NET 4.5, Java, others.
+Email: [email protected]
+
+Name: [Gahan](https://github.com/gahan-nirmauni)<br/>
+Place: India<br/>
+About: Computer Engineer<br/>
+Programming Language: C, Python<br/>
+Email: [email protected]<br/>
+
+Name: [MisterX22](https://github.com/MisterX22/)<br/>
+Place: Lannion, France<br/>
+About: Still looking what is behind the hill<br/>
+
+Name: [Hitanshu Sahu](https://github.com/Phantom-Cluster)<br/>
+Place: Kanpur, India<br/>
+About: Developer, Designer<br/>
+Programming Language: Python, JS<br/>
+Email: [email protected]<br/>
+
+Name: [Rosy Sanby](https://github.com/rosy-sanby)<br/>
+Place: Cape Town, South Africa<br/>
+About: Computer Engineer<br/>
+Programming Language: Javascript<br/>
+
+Name: [Paulo Bruny](https://github.com/pbruny)<br/>
+Place: Petrolina, Brazil<br/>
+About: Computer Engineering Student<br/>
+Programming Language: C, Javascript, Java<br/>
+Email: [email protected]<br/>
+
+
+Name: [Arvind Rachuri](https://github.com/arealdeadone)<br/>
+Place: Gwalior, India<br/>
+About: IT student at ABV - Indian Institute of Information Technology and Management, Gwalior<br/>
+Programming Languages: C++, C, JAVA, Ruby, Python, JavaScript, Golang<br/>
+Email: [email protected]<br/>
+
+Name: [Furkan Göksel](https://github.com/FireHunter27)
+Place: Ankara, Turkey 
+About: Computer Engineering Student
+Programming Language: python, java, c, c++
+Email: [email protected]

Capitalize

@@ -0,0 +1,15 @@
+#include <stdio.h>
+void capitalize(char *arr) {
+    int i;
+    for (i = 0; arr[i] != '\0'; i++) {
+        if(arr[i]>='a' && arr[i]<='z')
+            arr[i] -= 32;
+    }
+}
+int main () {
+    char arr[] = "winter is coming";
+    printf("%s\n",arr);
+    capitalize(arr);
+    printf("%s\n",arr);
+    return 0;
+}

Fatorial_finding.java

@@ -0,0 +1,24 @@
+import java.util.Scanner;
+
+class Factorial_finding
+{
+   public static void main(String args[])
+   {
+      int n, c, fact = 1;
+
+      System.out.println("Enter an integer to calculate it's factorial");
+      Scanner in = new Scanner(System.in);
+
+      n = in.nextInt();
+
+      if (n < 0)
+         System.out.println("Number should be non-negative.");
+      else
+      {
+         for (c = 1; c <= n; c++)
+            fact = fact*c;
+
+         System.out.println("Factorial of "+n+" is = "+fact);
+      }
+   }
+}

Palidrome.java

@@ -0,0 +1,6 @@
+class Palidrome{
+public static boolean isPalindrome(int integer) {
+    String intStr = String.valueOf(integer); 
+    return intStr.equals(new StringBuilder(intStr).reverse().toString());
+}
+}

Prime_No.py

@@ -0,0 +1,17 @@
+l=[1,2]
+import time
+n=int(input())
+for i in range(3,n):
+    if i%2==0:
+        pass
+    else:
+        for j in range(3,i+1,2):
+            if i%j==0 and j!=i:
+                break
+            elif j==i:
+                l.append(j)
+                #print(j,end=" ")
+            else:
+                pass
+l.sort(key=int)
+print(" ".join(map(str,l)))