Operators in java

 Operators:

• Operators are symbols and used to perform some mathematics operations.
• There are 6 kinds of operators,

1.Arithmetic operators: 

• This is normal mathematic operations such as,

Example program for the arithmetic operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a,b;

       System.out.println("\t\t  Arithmetic Operator.... ");

       System.out.println("Enter two value  : ");

       a = input.nextInt();

       b = input.nextInt();

       System.out.println("Add value is : "+(a+b));

       System.out.println("Sub value is : "+(a-b));

       System.out.println("Mul value is : "+(a*b));

       System.out.println("Div value is : "+(a/b));

       System.out.println("Mod value is : "+(a%b));

       System.out.println("Post increament of a value is : "+(a++));

       System.out.println("Pre increament of a value is : "+(++a));

       System.out.println("Post decreament of b value is : "+(b--));

       System.out.println("Pre increament of a value is : "+(--b));

    }

}

Output:

2. Relational Operators:

• It is used to compare two or more data.

Note:

• These logical operators mostly used in conditions.

3. Logical Operators:

• It is used to combine simple relational statements into more complex expressions. 

4. Assignment Operators:

• These operators are used to getting the result in the same variable(input/output).

Example program for the assignment operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a,b;

       System.out.println("\t\t  Assignment Operator.... ");

       System.out.println("\nEnter a value  : ");

       a = input.nextInt();

       a+=10;

       System.out.println("Now a value is : "+a);

    } 

    

}

Output:

5. Conditional Operators (? :)

• It checks itself the condition and executes the statement depending on the condition.

Syntax:

Condition?exp1:exp2;

Example program for the conditional operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a,b;

       System.out.println("\t\t  Conditional Operator.... ");

       System.out.println("\nEnter a and b value  : ");

       a = input.nextInt();

       b = input.nextInt();

       int big=a>b?a:b;

       System.out.println("Biggest value is : "+big);

    }

}

Output:

6. Bitwise Operators:

• It is used to manipulate the data at a bit level and it operates on integer only.

                                                                                  Binary table

Bitwise AND(&):

• The truth table for ‘ & ‘is shown below(It means True=1 and false=0.)

a=7 of binary code:0111

b=8 of the binary code is:1000

The result of the a&a value is 0000(i.e 0).

Example program for the bitwise AND operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a,b;

       System.out.println("\t\t  Bitwise AND Operator.... ");

       System.out.println("\nEnter a and b value  : ");

       a = input.nextInt();

       b = input.nextInt();

       int c=a&b;

       System.out.println("Bitwise AND of a&b value is : "+c);

    }

}

Output:

Bitwise OR(|):

• The truth table for ‘ | ‘is shown below

a=7 of binary code:0111

b=8 of the binary code is:1000

The result of a|b value is 1111(i.e 15).

Example program for the bitwise OR operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a,b;

       System.out.println("\t\t  Bitwise OR Operator.... ");

       System.out.println("\nEnter a and b value  : ");

       a = input.nextInt();

       b = input.nextInt();

       int c=a|b;

       System.out.println("Bitwise OR of a|b value is : "+c);

    }

}

Output:

Bitwise Exclusive OR(^):

• The truth table for ‘ ^ ‘is shown below

a=13 of binary code:1101

b=8 of the binary code is:1000

The result of a^b value is 0101(i.e 5).

Example program for the bitwise Exclusive OR operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a,b;

       System.out.println("\t\t  Bitwise Exclusive OR Operator.... ");

       System.out.println("\nEnter a and b value  : ");

       a = input.nextInt();

       b = input.nextInt();

       int c=a^b;

       System.out.println("Bitwise Exclusive OR of a^b value is : "+c);

    }

}

Output:

Bitwise Shift left (<<):

• The bitwise shift left operator is used to move the bits from right to left in storage.
• Each box called bits and a=6 and a<<1 then a=12.

Explanation:

Result: a of left shit value is 12.

Example program for the bitwise shift left operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a;

       System.out.println("\t\t  Bitwise left shit Operator.... ");

       System.out.println("\nEnter a value  : ");

       a = input.nextInt();

       int c=a<<1;

       System.out.println("Bitwise left shit of a value is : "+c);

    }

}

Output:

Bitwise Shift right(>>):

• The shit right is similar to the left shit.
• This operator is used to forward the bits from left to right in storage.
• For example, If a=6 and a>>1 then its value is 3.

Explanation:

Result: a of right shit value is 3.



Example program for the bitwise shift right operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a;

       System.out.println("\t\t  Bitwise right shit Operator.... ");

       System.out.println("\nEnter a value  : ");

       a = input.nextInt();

       int c=a>>1;

       System.out.println("Bitwise right shit of a value is : "+c);

    }

}

Output:

Bitwise One's complement(~):

• The truth table for ‘ ~ ‘is shown below

If a=6(binary code is 0110),

 and ~a(0111) value is 7. 

using a negative signature for one's complement(~a=-7).

Example program for the bitwise one's complement operator:

package exampleprogram;

import java.util.Scanner;

public class Operator {

    public static void main(String[] args){

       Scanner input = new Scanner(System.in);

       int a;

       System.out.println("\t\t  Bitwise one\'s complement Operator.... ");

       System.out.println("\nEnter a value  : ");

       a = input.nextInt();

       int c=~a;

       System.out.println("Bitwise one\'s complement of a value is : "+c);

    }

}

Output:

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