Operators in Java programming Hands on Coding

 

Operator;

Operator is a special symbol which can be used to perform logical and arithmetic operations on data or variable.

Operand; Operand is a data or variable on which the operation is to be performed.

Types of Operators;

• Arithmetic Operators
• Relational Operators
• Logical Operators
• Assignment Operators
• Bitwise Operators
• Increment/Decrement Operators
• Conditional Operators

Let's see each type in detail.

1. Arithmetic Operators;

symbol	operation	example
+	addition	x + y
-	subtraction	x-y
*	multiplication	x*y
/	division	x/y
%	modulus	x % y

             

 class Easy    
  {    
   public static void main(String[] args)    
   {    
   int a=5,b=3;    
   System.out.println("Add="+(a+b));    
   System.out.println("Sub="+(a-b));    
   System.out.println("Multi="+(a*b));    
   System.out.println("Div="+(a/b));    
   //Note:-modulus(%) always holds remainder value    
   System.out.println("Mod="+(a%b));    
   }    
  }    
  / ### Output ### Add=8 Sub=2 Multi=15 Div=1 Mod=2 /    

Relational Operators;

symbol	Operation	Example
= =	Equal to	2==3   returns 0
!=	Not equal   to	2! =3   returns 1
>	Greater   than	2>3   returns 0
<	Less than	2<3   returns 1
>=	Greater   than or   equal to	2>=3   returns 0
<=	Less than   or equal to	2<=3   returns 1

 Logical Operators;

Symbol	Operation	Example
&&	Logical   AND	if(x>y&&x>z)
| |	Logical   OR	if(x>y || x>z)
!	Logical   NOT	if(!(x>y))

(x>y)&&(x>z);

This expression will return true if both conditions are true.

(x>y)||(x>z);

This expression will return true if any one or both conditions are true or 1.

!(x>y);

This operator will reverse the state means if the condition is true it returns false and if the condition is false it returns true.

class Easy   
 {   
   public static void main(String[] args)   
   {   
    int a=10,b=60,c=40;   
    if(a>b&&a>c)   
      System.out.println("a is greatest");   
     if(b>a&&b>c)   
      System.out.println("b is greatest");   
     if(c>a&&c>b)   
      System.out.println("c is greatest");   
    }   
   }   
 / ### Output ### b is greatest / 
 

Assignment Operators;

 

Symbol	example	Same as
= =	x=y	x=y
+=	x+=y	x=x + y
- =	x-= y	x=x-y
*=	x*=y	x=x*y
/ =	x/=y	x=x/y
%=	x%=y	x=x % y

  

 

 class Easy   
 {   
   public static void main(String[] args)   
   {   
    int x1=5,y1=3;   
    x1+=y1;   //x1=x1+y1   
    System.out.println(x1);   

 int x2=5,y2=3;   
 x2-=y2;      //x2=x2-y2   
    System.out.println(x2);   

 int x3=5,y3=3;   
 x3*=y3;      //x3=x3*y3   
    System.out.println(x3);   

 int x4=5,y4=3;   
 x4/=y4;       //x4=x4/y4   
    System.out.println(x4);
   
 int x5=5,y5=3;   
 x5%=y5;      //x5=x5%y5   
    System.out.println(x5);   
    }   
   }   
 ### Output ###  
  8 2 15 1 2   
  
  

Bitwise Operators;

 

symbol	operation	example
&	Bitwise AND	x &y
|	Bitwise OR	x| y
<<	Left shift	<<2
>>	Right shift	>>2
^	X-or	x ^ y

class Easy    
  {    
   public static void main(String[] args)    
   {    
    //variable declaration    
    int a=5,b=3,c;    
    c=a&b;    //AND Operation    
    System.out.println("a&b="+c);    
    c=a|b;     //OR Operation    
    System.out.println("a|b="+c);    
    c=a>>2;    //Shift right Operation    
    System.out.println("a>>2="+c);    
    c=a<<2;    //Shift left Operation    
    System.out.println("a<<2="+c);    
    c=a^2;     //X-OR Operation    
    System.out.println("a^2="+c);    
   }    
  }    
 / ### Output ###  
  a&b=1 a|b=7 a>>2=1 a<<2=20 a^2=7   

Increment/Decrement Operators;

 

symbol	name	function	example
++	Increment	Increments the value by 1	++x
--	Decrement	Decrements the value by 1	--x

 

  

class Easy    
  {    
   public static void main(String[] args)    
   {    
    //variable declaration    
    int a=5,b=10;    
    System.out.println(++a);    
    System.out.println(--b);    
   }    
  }    
 / ### Output ### 6 9 /   
 

Conditional Operators;

If the condition is true second part will execute otherwise third part will execute.

class Easy    
  {    
   public static void main(String[] args)    
   {    
   //variable declaration    
   int a=5,b=10,max;    
   max=a>b?a:b;    
   //don't be confused,here + is separator in java    
   System.out.println("Greater value is "+max);    
  }    
  }   

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