22 may 2022 TCS CPA JAVA CODING QUESTION SOLVED.(reverse number if odd,else print cannot reverse.)

 Q1.Write main method in the MyClass class.

In the main method,read an int value.Reverse the number and print it 

only if the given number is odd.Else print the String "Cannot reverse".

for example if the given number is 123 which is an odd number,

we need to reverse the number and output should be 321.

sample input1:

123

output:

321

sample input2:

788

output:

Cannot reverse.

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code:

import java.util.Scanner;

public class MyClass {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int num=sc.nextInt();sc.nextLine();
        if(num%2==0)
        {
            System.out.println("Cannot reverse");
        }
        else
        {
            int res=0;
            int temp=num;
            while(temp>0)
            {
                int rem=temp%10;
                res=res*10+rem;
                temp=temp/10;
            }
            System.out.println(res);
        }
    }
}