Issue with logic and Loop in Java

Question

I started coding small program in Java. I wanted to exercise try-catch block, but i did not even come to that part and got stuck on loop part. I know this is very basic loop

Answer 1

You need a logical and (not or) here

while (choice != 1 || choice != 2) {
    System.out.println("Invalid entry, press 1 or 2");
    MenuLoop();
} 

should be something like

while (choice != 1 && choice != 2) {
    System.out.println("Invalid entry, press 1 or 2");
    MenuLoop();
} 

or (using De Morgan's laws) like

while (!(choice == 1 || choice == 2)) {
    System.out.println("Invalid entry, press 1 or 2");
    MenuLoop();
}