Simple na yan tutoy effort ka naman, anyway ito sa C# ikaw na bahala gawin mo sa Java. ganito lang idea niya
int num1, num2,;
Console.Write("Input the first number: ");
num1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Input the second number: ");
num2 = Convert.ToInt32(Console.ReadLine());
int result = num1 * num2 ;
Console.WriteLine("Output: {0} x {1} = {2}",
num1, num2, result);