Convert from binary number to decimal number

Java Program to convert from binary to decimal number

Input:  1111   //Binary Number

Output:  15    //Decimal Number

import java.io.*;
import java.util.*;
public class temp{
	 public static void main(String[] args) {
       Scanner scan = new Scanner(System.in);
       
       System.out.println("Enter a Binary Number:  ");
       String bin = scan.nextLine();

       System.out.println("Decimal Number:  "+Integer.parseInt(bin,2));
	}
}

INPUT_1:
Enter a Binary Number:
1101

OUTPUT:
Decimal Number:  13

INPUT_2:
Enter a Binary Number:
111

OUTPUT:
Decimal Number:  7

INPUT_3:
Enter a Binary Number:
0001

OUTPUT:
Decimal Number:  1

INPUT_4:
Enter a Binary Number:
1001

OUTPUT:
Decimal Number:  9

INPUT_5:
Enter a Binary Number:
1010

OUTPUT:
Decimal Number:  10

INPUT_6:
Enter a Binary Number:
1111

OUTPUT:
Decimal Number:  15

INPUT_7:
Enter a Binary Number:
010

OUTPUT:
Decimal Number:  2

ILLUSTRATION

Morae Q!

1. Convert from binary number to decimal number.
2. Swap two numbers by using division and multiplication.
3. Compute foot and inches into centimetres.
4. Concatenate Strings.
5. Convert lowercase letters to uppercase letters.
6. Compute the sum of all the digits of N.
7. Compute the area of the pentagon.
8.  Get input using scanner.
9. Find the distance between two points (x1,y1) and (x2,y2).
10. Finding patterns in a file using frep and egrep .
11. Detecting a cycle in a directed graph using Depth First Traversal.
12. Topological ordering in a Graph.
13. Storing graphs using adjacency list.
14. Introduction to graph theory.
15. Graph Adjacency Matrix pseudo code.
16. Adjacency Matrix for storing graphs.
17. Dijkstra’s shortest path algorithm .
18. Breadth first search (BFS) Algorithm.
19. Find the multiple of given number in the list of integers.
20. Finding patterns in files using grep .