Page 163 - ComputerScience_Class_11

They are as follows:

Operator Meaning Description Example Result
&& AND Returns True if both the conditions are (5>6) && (1<5) False
satisfied else will return false.
|| OR Returns False if both the conditions do (11==11) || (3>20) True
not satisfy else will return true.
! NOT Reverses the result. ! (4==4) False
Some Solved Examples:
1. 3>2

Ans. True Reason: 3>2 is true
2. (4+2)>5
Ans. True Reason: (4+2)>5 is true
3. 3>7 || 8<12

Ans. True Reason: 8<12 is true
4. (3==5) && (2!=4)
Ans. False Reason: 3==5 is false
5. 2==0 && 5<(3+4)
Ans. False Reason: 2==0 is false
6. 5!=5 || (1+2)==3

Ans. True Reason: 3==3 is true
7. !(8==8)
Ans. False Reason: 8==8 is true and not of true is false
8. !(4>12)
Ans. True Reason: 4>12 is false and not of false is true
9. (4!=2) || (4>4)
Ans. True Reason: 4 !=2 is true

Conditional Assignment Operator
This operator consists of three operands, so it is also known as the ternary operator. The three operands may be
variables, expressions or constant values. The syntax of the ternary operator is as follows:

variable = (test condition)? Expression1 : Expression2;
The operator evaluates the test condition first and then the expression based on the result of the condition. If the
condition results in true, expression1 will be evaluated and if the condition returns false, expression2 will be evaluated.
Some solved examples:
1. int a = 5, b = 6, large;
large = (a > b)? a : b;
Ans. 6
2. double d1 = 10.5, d2 = 5.5, small;
small = (d1 + d2 > 0)? d1 : d2;
Ans. 10.5
3. int c = (3 < 4)? 3 * 4 : 3 + 4;
Ans. 12

Variables and Expressions 161