Merge pull request #46 from darshanr27/master

Solution for String Reverse

Author: SarthakKeshari

String Handling/StringReverse.java

@@ -0,0 +1,37 @@
+// Write a java program to reverse the string without using the inbuilt function.
+
+import java.util.Scanner;
+
+class StringReverse {
+	public static void main(String [] args)
+	{
+		Scanner scan = new Scanner(System.in);
+		System.out.println("Enter a String:");
+		String str = scan.nextLine();
+		System.out.println("-----------------------");
+		System.out.println("Sting Before Reversing:");
+		System.out.println(str);
+		
+//		 Converting the string into character array
+		char arr1[] = str.toCharArray();
+		
+//		 Creating the new array to store the character while reversing
+		char arr2[] = new char[arr1.length];
+
+//		 The j value will be used to start storing the character from last index in arr2
+		int j = arr2.length - 1;
+		
+//		 Using for loop to traverse through the arr1
+//		 In each iteration the character in arr1 is stored in the arr2 from last index in each iteration the j value decrements  
+		for (int i = 0; i <= arr1.length-1; i++) {
+			arr2[j] = arr1[i];
+			j--;
+		}
+		
+//		 Creating the string using the character array arr2
+		str = new String(arr2);
+		System.out.println("-----------------------");
+		System.out.println("String After Reversing:");
+		System.out.println(str);
+	}
+}