Java Operators Homework Help

Operators is a symbols used to perform some operations with values. We have following list of operators supported by java.

It is used to do common mathematical operations. If we consider x=40, y=20 then the result should be like following table.

Operator	Name	Description	Example	Answer
+	Addition	Add two values	x+y	60
-	Subtraction	Subtract values from one another	x-y	20
*	Multiplication	Multiple two values	x*y	800
/	Division	Divide values from one another	x/y	2
%	Modulas	Returns the reminder	x%y	0
++	Increment	Increase the value by 1	++x	41
--	Decrement	Decrease value by 1	--x	39

We consider x=40, y=20 then the result should be like following table.

Operator	Name	Description	Example	Answer
==	Equal to	Check if two values are equal	x==y	False
!=	Not equal to	Check if two values are not equal	x!=y	True
>	Greater than	Check left side value is larger than right side value	x>y	True
<	Less than	Check left side value is less than right side value	x<y	False
>=	Greater than equal to	Check left side value is larger or equal to right side value	x>=y	True
<=	Less than equal to	Check left side value is less than or equal to right side value	x<=y	False

It performs bit by bit level. If we consider x=11, y=22 the result is

Operator	Name	Description	Example	Answer
&	Bitwise and	copies a bit to the result if both operands are exist.	x&y	2 00000010
\|	Bitwise or	copies a bit to the result if any one operands are exist.	x\|y	31 00011111
^	Bitwise XOR	copies a bit to the result if not both operands but set in one.	x^y	29 00011101
~	Bitwise Compliment	effect of 'flipping' bits	~x	-12 11110100
<<	Left shift	The left side value is moved left by the number of bits specified by the right side value	x<<2	44 00101100
>>	Right shift	The right side value is moved right by the number of bits specified by the right side value	x>>2	2 00000010

If we consider A holds true b holds false means the result is

Operator	Name	Description	Example	Answer
&&	Logical and	If both the operands are non-zero, then it becomes true.	x&&y	False
\|\|	Logical or	If any one of the operands are non-zero, then it becomes true.	x\|\|y	True
!	Logical not	If both conditions makes true logical not make it false	!(x&&y)	True

Operator	Name	Description	Example
=	Simple assignment	Assign values right side to left side	x=y
+=	Add AND assignment	Add right to left and assign to left operand	x+=y
-=	subract AND assignment	subract right to left and assign to left operand	x-=y
*=	Multiply AND assignment	multiply right with left and assign to left operand	x*=y
/=	Divide AND assignment	divide right with left and assign to left operand	x/=y
%=	Modulus AND assignment	Modulus of two operand and assign to left operand	x%=y
<<=	Left shift AND assignment	Left shift AND assign value	x<<=3
>>=	Right shift AND assignment	Right shift AND assign value	x>>=3
&=	Bitwise AND assignment	Bitwise AND assign value	x&=3
\|=	Bitwise inclusive or assignment	Bitwise inclusive or assign value	x\|=3
^=	Bitwise exclusive or assignment	Bitwise exclusive or assign value	x^=3

The conditional operator is called ternary operator. It consists of three operands. Depends on Boolean result it assign value to operand.

variable x = (expression) ? value if true : value if false

Example:

Output:

y is : 30

y is :40

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