,&& and &,| in Java | The difference from |

There are four classes in the logical operator (in Java):

&& (short circuit and),&

|| (short circuit or), |

Short circuit and is a logical operator in the Java language, which is recorded as &&amp, and is similar to logic in programming languages, but has short-circuit properties. The symbol is:&&. A&&b, when a is false, returns false without calculating the value of B, and evaluates the value of B when a is true. (from Baidu Encyclopedia) and A&b, you need to calculate the values of a and B to return a value. In simple terms:&& and & are both expressed and, the difference is && if the first condition is not satisfied, the latter condition is no longer judged. & has to judge all the conditions. Example 1

 Public class demo{publicstaticvoid  main (string[] args) {        int i = 4;         if ((i++ > 6) & (i++ < 9)) {            System.out.println (i);            System.out.println ("If is true");        }        System.out.println (i);    }}

Operation Result: 6

Since I have added two times.

Example 2:

 Public class demo{publicstaticvoid  main (string[] args) {        int i = 4;         if ((i++ > 6) && (i++ < 9)) {            System.out.println (i);            System.out.println ("If is true");        }        System.out.println (i);    }}

Operation Result: 5

Since I was added once.

Similarly, | and | | is a similar situation.

Baidu Encyclopedia:

A short-circuit or a logical operator in the Java language, written as | |. The so-called short circuit, that is, when the first item is true, the second judgment is no longer made.

a| | B: Only A and B are false, the result is false, there is a true, and the result is true.

In simple terms:

　　　　　　|| and | Both are expressed with, the difference is | | If the first condition is not satisfied, the latter condition is no longer judged. and | You have to judge all the conditions.

,&& and &,| in Java | The difference from |