10)OPERATORS.pdf

What is operators?
● Operators are predefined symbol which is used to perform some
specific task on the given data.the data given as a input to the
operator is known as operand.
TYPES OF OPERATORS BASED ON OPERAND:
● UNARY OPERATOR
● BINARY OPERATOR
● TERNARY OPERATOR

UNARY OPERATOR :
The operator which can accept only one operand
is known as unary operator.
Example : Increment/Decrement operator.

BINARY OPERATOR:
The operator which can accept two operand is known
as binary operator.
Example : Arithmetic operator,relational operators.

TERNARY OPERATOR:
The operator which can accept three operand is
known as ternary operator.
Example : Conditional Operator

CLASSIFICATION OF OPERATOR BASED ON TASK:
● ARITHMETIC OPERATOR
● ASSIGNMENT OPERATOR
● RELATIONAL OPERATOR
● LOGICAL OPERATOR
● INCREMENT/DECREMENT OPERATOR
● CONDITIONAL OPERATOR
MISCELLANEOUS

‘+’ Operator:
+
ADDITION
CONCAT

ACTIVITY:
1.Write a java program to perform addition of two numbers.
2.Write a java program to concat a number and String.
3.Write a java program to concat a floating number and String.
4.Write a java program to concat a integer and character.
5.Write a java program to concat a character and String.
6.Write a java program to concat a integer,character,boolean and
String data.

ASSIGNMENT OPERATOR:
Assignment operators are used in Java to assign values to variables.
1. +=
2. -=
3. *=
4. /=

Operator Example Equivalent to
= a=b; a=b;
+= a+=b; a=a+b;
- -= a-=b; a=a-b;

Operator Example Equivalent to
*= a*=b; a=a*b;
/= a/=b; a=a/b;
%= a%=b; a=a%b;

RELATIONAL OPERATORS:
● < - lesser than
● > - greater than
● <= - lesser than or equal to
● >= - greater than or equal to
● == - equal to
● != - not equal to

NOTE :
The return value of relational operator is boolean.

LOGICAL OPERATOR:
&&(Logical AND)
If all the expression returns true then this operator will
return true
||(Logical OR)
If any of one of the expression return true then this operator
will return true
! (Logical NOT)
It the result is true then it will return false and vice versa

TRUE TRUE TRUE
TRUE FALSE FALSE
FALSE TRUE FALSE
FALSE FALSE FALSE
AND TABLE :

OR TABLE :
TRUE TRUE TRUE
TRUE FALSE TRUE
FALSE TRUE TRUE
FALSE FALSE FALSE

INCREMENT/DECREMENT OPERATOR
Increment Operator:
● Pre-Increment Operator
● Post-Increment Operator
Decrement Operator:
● Pre-Decrement Operator
● Post-Decrement Operator

INCREMENT OPERATOR
PRE-INCREMENT (++VAR) POST-INCREMENT(VAR++)
● INCREMENT THE
VALUE BY 1
● USE THE
UPDATED VALUE
● USE THE OLD
DATA
● INCREMENT THE
VALUE BY 1

DECREMENT OPERATOR
PRE- DECREMENT(--VAR) POST- DECREMENT(VAR- -)
● DECREMENT THE
VALUE BY 1
● USE THE
UPDATED VALUE
● USE THE OLD
DATA
● DECREMENT THE
VALUE BY 1

Conditional Operator:
SYNTAX:
Operand 1 ? Operand 2 : Operand 3
(Condition) ? value1 : value2

Working of Conditional Operator:
CONDITION ? VALUE1 VALUE2
:
TRUE
FALSE

● Conditional Operator will check the condition,if
condition is true operand 2 will gets executed,if
condition is false operand 3 ill gets executed.
Note :
● The return value of conditional operator is always
boolean.
● The return value of operand 1 is based on operand
2 and operand 3.

EXAMPLE:
Class Demo
{
public static void main(String[] args)
{
int a = 10;
int b =20;
int c = (a>b) ? a : b; //Conditional Operator
System.out.println(c); // 20
}
}

TRACE THE PROGRAMS: (INCREMENT OPERATOR)
1.int a=10;
a++;
s.o.p(a);
2.int b =20;
++b;
s.o.p(b);
3.int a=10;
a=a++;
s.o.p(a);
4.int d =40;
int e = 50;
d = d++ + ++e;
s.o.p(d);

5.short s = 20;
byte b = 25;
s++;
++b;
s.o.p(s+b);
6. int a1=100;
short a2 = 150;
int a3 = 350;
long a4 = 200;
long res = a1++ - ++a2 +a3++ - ++a4;
s.o.p(res);

1.int a=35;
a - - ;
s.o.p(a);
2.int b = 70;
- -b;
s.o.p(b);
TRACE THE PROGRAMS: (DECREMENT OPERATOR)
3.int a=100;
a= a- -;
s.o.p(a);
4.int d =76;
int e = 32;
d = d- - + - -e;
s.o.p(d);

5. int a1=100;
short a2 = 150;
int a3 = 350;
long a4 = 200;
int res = a1- - - ++a2 + a3- - - ++a4;
s.o.p(res);

10)OPERATORS.pdf

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10)OPERATORS.pdf