How to use Java short circuit logic operator

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1. Description

The logical operator performs short-circuit evaluation. The so-called short circuit means that when one Operand participating in the operation is sufficient to infer the value of the expression, another Operand (which may be an expression) will not be executed.

When using logical operators, when both operands are true, the result is true, but when the first operation is false, the result must be false, and the second operation is no longer judged.

2. Example public static void main (String [] args) {int a = 5 leads to / defines a variable; boolean b = (a < 4) & & (aplink + < 10); / / the result of using the short-circuit logic operator is false System.out.println ("the result of using the short-circuit logic operator is" + b "); / / the result of / an is 5 System.out.println (" the result of "a" + a);}

The program uses the short-circuit logic operator (& &) to determine a first.