The short-circuit logical operators && and ||
&& short-circuit AND
|| short-circuit OR
&& and || are similar to the & and | operators.
&& and || are applicable only to boolean values and not integral types.
&& and || have the ability to "short circuit" a calculation if the result is definitely known.
&& and || are useful for null-reference-handling in Java programming.
The right operand might not be evaluated in the && and ||
public class MainClass {
public static void main(String[] args) {
if ((isItSmall(3)) || (isItSmall(7))) {
System.out.println("Result is true");
}
if ((isItSmall(6)) || (isItSmall(9))) {
System.out.println("Result is true");
}
}
public static boolean isItSmall(int i) {
if (i < 5) {
System.out.println("i < 5");
return true;
} else {
System.out.println("i >= 5");
return false;
}
}
}
|