JAVA instance. Check whether the integer entered by the user is an even number.

JAVA instance. Check whether the integer entered by the user is an even number.

Question: You can enter an integer, And the return value is an even number or an odd number.

Even number rule: divide by 2 the number that can be divisible is called an even number, otherwise it is an odd number

Instance:

Switch

Import java. util. role; public class Test {public static void main (String [] args) {role in = new role (System. in); System. out. println ("enter an integer"); int num = in. nextInt (); int num_p = num % 2; // switch (num_p) {case 0: System. out. println ("even"); break; // jump out of default: // default System. out. println ("odd ");}}}

If version

Import java. util. role; public class Test {public static void main (String [] args) {role in = new role (System. in); System. out. println ("enter an integer"); int num = in. nextInt (); int num_p = num % 2; // obtain the remainder after division if (num_p = 0) {System. out. println ("even");} else {System. out. println ("odd ");}}}