Operators In Java Part - 8
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What is Java? Part - 1
https://www.slideshare.net/MuhammadAtif231/what-is-java-part-1
History Of Java Part - 2
https://www.slideshare.net/MuhammadAtif231/history-of-java-part-2
Features Of Java Part - 3
https://www.slideshare.net/MuhammadAtif231/history-of-java-part-2
C++ Vs Java Part - 4
https://www.slideshare.net/MuhammadAtif231/c-vs-java-part-4
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https://maccablo.com/java-virtual-machine-jdk-jre-jvm/
Previously we had begin with Java Tutorial beginners guide featuring – What is Java , features of Java Programming Language , Java editors and different Java editions and Java Application Types . Now on Java tutorial we begin with the section 2 that is about JVM – Java Virtual Machine . And also about the difference between JDK Vs JRE Vs JVM including other aspects of Java Virtual Machine .
https://maccablo.com/java-virtual-machine-jdk-jre-jvm/
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Operators In Java Part - 8
1. Title : Java Programming Language
Muhammad Atif Noori
noorithemes@gmail.com
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1
2. Java Basic Operators
Java provides a rich set of operators to manipulate variables. We can divide all the Java
operators into the following groups −
Arithmetic Operators
Relational Operators
Bitwise Operators
Logical Operators
Assignment Operators
Misc Operators
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3. Java Arithmetic Operators
Arithmetic operators are used in mathematical expressions in the same way that they are used
in algebra. The following table lists the arithmetic operators.
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Operator Description Example
+ (Addition)
Adds values on either side of the
operator.
A + B will give 30
- (Subtraction)
Subtracts right-hand operand from
left-hand operand. A - B will give -10
* (Multiplication)
Multiplies values on either side of the
operator. A * B will give 200
4. Java Arithmetic Operators
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/ (Division)
Divides left-hand operand by
right-hand operand.
B / A will give 2
% (Modulus)
Divides left-hand operand by
right-hand operand and
returns remainder.
B % A will give 0
++ (Increment)
Increases the value of operand
by 1.
B++ gives 21
-- (Decrement)
Decreases the value of
operand by 1.
B-- gives 19
5. Example
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class Test{
Public static void main(String[] args) {
int a = 10;
int b = 20;
int c = 25;
int d = 25;
System.out.println("a + b = " + (a + b) );
System.out.println("a - b = " + (a - b) );
System.out.println("a * b = " + (a * b) );
Part 1 of 3
6. Example
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System.out.println("b / a = " + (b / a) );
System.out.println("b % a = " + (b % a) );
System.out.println("c % a = " + (c % a) );
System.out.println("a++ = " + (a++) );
System.out.println("b-- = " + (a--) );
// Check the difference in d++ and ++d
System.out.println("d++ = " + (d++) );
System.out.println("++d = " + (++d) );
}
}
Part 2 of 3
8. Java Relational Operators
There are following relational operators supported by Java language.
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Operator Description Example
== (equal to)
Checks if the values of two operands are
equal or not, if yes then condition becomes
true.
(A == B) is not true.
!= (not equal to)
Checks if the values of two operands are
equal or not, if values are not equal then
condition becomes true.
(A != B) is true.
> (greater than)
Checks if the value of left operand is greater
than the value of right operand, if yes then
condition becomes true.
(A > B) is not true.
9. Java Relational Operators
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< (less than)
Checks if the value of left operand
is less than the value of right
operand, if yes then condition
becomes true.
(A < B) is true.
>= (greater than or equal to)
Checks if the value of left operand
is greater than or equal to the
value of right operand, if yes then
condition becomes true.
(A >= B) is not true.
<= (less than or equal to)
Checks if the value of left operand
is less than or equal to the value
of right operand, if yes then
condition becomes true.
(A <= B) is true.
10. Example
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class Test{
Public static void main(String[] args) {
int a = 10;
int b = 20;
System.out.println("a == b = " + (a == b) );
System.out.println("a != b = " + (a != b) );
System.out.println("a > b = " + (a > b) );
System.out.println("a < b = " + (a < b) );
System.out.println("b >= a = " + (b >= a) );
Part 1 of 3
13. Java Logical Operators
The following table lists the logical operators
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Operator Description Example
&& (logical and)
Called Logical AND operator. If both the
operands are non-zero, then the condition
becomes true.
(A && B) is false
|| (logical or)
Called Logical OR Operator. If any of the two
operands are non-zero, then the condition
becomes true.
(A || B) is true
! (logical not)
Called Logical NOT Operator. Use to reverses the
logical state of its operand. If a condition is true
then Logical NOT operator will make false.
!(A && B) is true
14. Java Assignment Operators
Following are the assignment operators supported by Java language
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Operator Description Example
=
Simple assignment operator. Assigns values
from right side operands to left side operand.
C = A + B will assign
value of A + B into C
+=
Add AND assignment operator. It adds right
operand to the left operand and assign the
result to left operand.
C += A is equivalent to
C = C + A
-=
Subtract AND assignment operator. It
subtracts right operand from the left operand
and assign the result to left operand.
C -= A is equivalent to
C = C – A
15. Java Assignment Operators
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*=
Multiply AND assignment
operator. It multiplies right
operand with the left operand
and assign the result to left
operand.
C *= A is equivalent to C = C *
A
/= Divide AND assignment
operator. It divides left
operand with the right
operand and assign the result
to left operand.
C /= A is equivalent to C = C / A
16. Java Assignment Operators
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<<=
Left shift AND assignment
operator.
C <<= 2 is same as C = C << 2
>>=
Right shift AND assignment
operator.
C >>= 2 is same as C = C >> 2
&=
Bitwise AND assignment
operator.
C &= 2 is same as C = C & 2
^=
bitwise exclusive OR and
assignment operator.
C ^= 2 is same as C = C ^ 2
|=
bitwise inclusive OR and
assignment operator.
C |= 2 is same as C = C | 2
17. Java Miscellaneous Operators
There are few other operators supported by Java Language.
Conditional Operator ( ? : )
Conditional operator is also known as the ternary operator. This operator consists of three
operands and is used to evaluate Boolean expressions. The goal of the operator is to decide,
which value should be assigned to the variable. The operator is written as −
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variable x = (expression) ? value if true : value if false
18. Example
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class Test{
Public static void main(String[] args) {
int a = 10;
int b = (a == 1) ? 20 : 30;
System.out.println( "Value of b is : " + b );
b = (a == 10) ? 20 : 30;
System.out.println( "Value of b is : " + b );
Part 1 of 2
