java use of logical operator

Question 10:

What is nested if else

Ans:

In if statement there is another if statement is called nested if else statement.

If(9==9)

{  if(8=8)

Statement;

Else

Statement;

}

Else

Statement;

Question 11:

What are logical operator.

Ans:

AND( &&)      OR(||)             NOT(!)

These are logical operator.  

Question 12:

What is AND operator.

Ans:

Its result is only true when all the conditions are true. Otherwise its result is false.

Its symbol is &&.

Question 13:

What is OR operator.

Ans:

Its result is true when only one condition becomes true. Its result is only false when both conditions becomes false.

Its symbol is ||.

Question 14:

What is NOT operator.

Ans:

If condition is true its result is false if codition is false its result is true.

Its symbol is !

Question 15:

What is switch statement

Ans:

A switch statement executes statements based on the value of a variable or an

expression..