&& and & in Java | | and | The difference between

In Java's logical operators, there are so four classes of:&& (short-circuit and),& (with), | (or), | | (short circuit or).

&& and & are both expressed and, the difference is && as long as the first condition is met, the later conditions are no longer judged. & has to judge all the conditions.

"&" Action

The code is as follows:

2. Public class operatedemo01{

4. /**

6. Verify (&) and action

8. Description: The "and" operation requires all conditions to be judged again

10. */

12. Public Static void Main (String args[]) {

14. if (ten!= &/0= =0) {

16. /*10! =10 this condition returns false

18. 10/0==0 This place will throw an exception (java.lang.ArithmeticException:/by zero)

20. Due to the need to determine all conditions of operation, there will be errors at 10/0

22. */

24. System.out.print ("conditions meet!") ");

26. }

28. }

30. }

Operation Result:

Modify the following code:

"&&" Action:

2. Public class operatedemo02{

4. /**

6. Verifying the "Short circuit and &&" operation

8. Description: "Short circuit and &&" operation if the first condition is not satisfied then the following conditions will not be judged.

10. */

12. Public Static void Main (String args[]) {

14. if (ten!= &&/0= =0) {

16. /*10! =10 this condition returns false

18. Because the first condition is not satisfied, so the 10/0==0 this condition no longer need to judge

20. */

22. System.out.print ("conditions meet!") ");

24. }

26. }

28. }

Operation Result:

|| (short-circuit or) and | (or) are all "or", the difference is | | As long as the first condition is met, the following conditions are no longer judged, and | All conditions are judged.

Look at the following code:

"| |" Operation

2. Public class operatedemo03{

4. /**

6. Verify the "short-circuit or | |" Operation

8. Description: "Short Circuit or | |" If the first condition is true then the following conditions are no longer judged

10. */

12. Public Static void Main (String args[]) {

14. if (ten =Ten| | 0= =0) {

16. /*10==10 This condition returns true

18. Because the first condition is satisfied, the condition of 10/0==0 no longer has to be judged.

20. */

22. System.out.print ("conditions meet!") ");

24. }

26. }

28. }

Operation Result:

Modify the following code:

| Operation

2. Public class operatedemo04{

4. /**

6. Verify the OR | action

8. Description: "or |" All conditions require judgment

10. */

12. Public Static void Main (String args[]) {

16. if (ten =Ten| 0= =0) {

18. /*

20. Although 10==10 returns true but 10/0==0 this condition will throw an exception error

22. So when the second condition is judged, it throws an exception.

24. */

26. System.out.print ("conditions meet!") ");

28. }

30. }

32. }

Operation Result: