Write a program to reverse an integer in Java. Write a program in Java to check whether an integer is Armstrong number or not. Write a program in Java to check given number is prime or not. Write a ...

The square root of a number a is a number x such that x2 = a, or in other words, the number x whose squared value = a. For example, 2 and −2 are square roots of 2 because 2² = (−2)² = 4. The radical ...