Thursday, October 20, 2016

Java Datatypes

Java has 8 primitive data types; char, boolean, byte, short, int, long, float, and double. For this exercise, we'll work with the primitives used to hold integer values (byte, short, int, and long):
  • A byte is an 8-bit signed integer.
  • A short is a 16-bit signed integer.
  • An int is a 32-bit signed integer.
  • A long is a 64-bit signed integer.
Given an input integer, you must determine which primitive data types are capable of properly storing that input.
To get you started, a portion of the solution is provided for you in the editor.
Reference: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html
Input Format
The first line contains an integer, , denoting the number of test cases.
Each test case, , is comprised of a single line with an integer, , which can be arbitrarily large or small.
Output Format
For each input variable and appropriate primitive , you must determine if the given primitives are capable of storing it. If yes, then print:
n can be fitted in:
* dataType
If there is more than one appropriate data type, print each one on its own line and order them by size (i.e.: ).
If the number cannot be stored in one of the four aforementioned primitives, print the line:
n can't be fitted anywhere.
Sample Input
5
-150
150000
1500000000
213333333333333333333333333333333333
-100000000000000
Sample Output
-150 can be fitted in:
* short
* int
* long
150000 can be fitted in:
* int
* long
1500000000 can be fitted in:
* int
* long
213333333333333333333333333333333333 can't be fitted anywhere.
-100000000000000 can be fitted in:
* long 
 

My Java Code 

import java.util.*;
import java.io.*;


class Solution{
    public static void main(String []argh)
    {

        Scanner sc = new Scanner(System.in);
        int t=sc.nextInt();

        for(int i=0;i<t;i++)
        {
            try
            {
             long x=sc.nextLong();
             System.out.println(x+" can be fitted in:");
             if(x>=-128 && x<=127)
             System.out.println("* byte");
             if(x>=-32768 && x<=32767)
             System.out.println("* short");
             if(x>=-(int)(Math.pow(2,31)) && x<=((int)(Math.pow(2,31))-1))
             System.out.println("* int");
             if(x>=-(long)(Math.pow(2,63)) && x<=((long)(Math.pow(2,63))-1))
             System.out.println("* long");
            }
            catch(Exception e)
            {
             System.out.println(sc.next()+" can't be fitted anywhere.");
            }

        }
    }
}

Output of MY JAVA Code
Input (stdin)
5
-150
150000
1500000000
213333333333333333333333333333333333
-100000000000000
Your Output (stdout)
-150 can be fitted in:
* short
* int
* long
150000 can be fitted in:
* int
* long
1500000000 can be fitted in:
* int
* long
213333333333333333333333333333333333 can't be fitted anywhere.
-100000000000000 can be fitted in:
* long
Expected Output
-150 can be fitted in:
* short
* int
* long
150000 can be fitted in:
* int
* long
1500000000 can be fitted in:
* int
* long
213333333333333333333333333333333333 can't be fitted anywhere.
-100000000000000 can be fitted in:
* long


Explanation:
can be stored in a short, an int, or a long.
is very large and is outside of the allowable range of values for the primitive data types discussed in this problem.