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50. Relational Operators








Program to demonstrate the relational operator '==' (i.e.Equal to)                                                                                                       


class OperatorEqualTo
{
   public static void main(String args[])
   {
       int a=3,b=3;
       System.out.println(a==b);     //a==b will return 'true' as 3==3 is true
   }
 }

Output of this program:

true

Program to demonstrate the relational operator '!=' (i.e.Not Equal to)


class OperatorNotEqualTo
{
   public static void main(String args[])
   {
       int a=3,b=3;
       System.out.println(a!=b);      //a!=b will return 'false' as 3!=3 is false
   }
 }

Output of this program:

false

Program to demonstrate the relational operator '<' (i.e. less than)


class OperatorLessThan
{
   public static void main(String args[])
   {
       int a=3,b=4,c=6;

       System.out.print(" a is less than b is "); System.out.println(a<b);
       System.out.print(" c is less than b is "); System.out.println(c<b);
   }
 }

Output of this program:

a is less than b is true
c is less than b is false

Program to demonstrate the relational operator '>' (i.e. greater than)


class OperatorGreaterThan
{
   public static void main(String args[])
   {
       int a=3,b=4,c=6;

       System.out.print(" a is greater than b is ");
       System.out.println(a>b);
       System.out.print(" c is greater than b is ");
       System.out.println(c>b);
   }
 }

Output of this program:

a is greater than b is false
c is greater than b is true

Program to demonstrate the relational operator '<=' (i.e.less than or Equal to)

class OperatorLessThanOrEqualTo
{
   public static void main(String args[])
   {
       int a=3,b=3,c=6;

       System.out.print(" a is less than or equal to b is ");
       System.out.println(a<=b);     //a and b are equal hence a<=b will return true
       System.out.print(" a is less than or equal to c is ");
       System.out.println(a<=c);    // a is less than c hence a<=c will return true
       System.out.print(" c is less than or equal to b is ");
       System.out.println(c<=b);   // c is neither less than b nor equal to b hence c<=b will return false
   }
 }

Output of this program:

a is less than or equal to b is true
a is less than or equal to c is true
c is less than or equal to b is false

Program to demonstrate the relational operator '>=' (i.e. greater than or Equal to)


class OperatorLessThanOrEqualTo
{
   public static void main(String args[])
   {
       int a=3,b=3,c=6;

       System.out.print(" a is less than or equal to b is ");
       System.out.println(a>=b);     //a and b are equal hence a>=b will return true
       System.out.print(" a is less than or equal to c is ");
       System.out.println(a>=c);    // a is neither greater than c  nor equal to c hence a>=c will return false
       System.out.print(" c is less than or equal to b is ");
       System.out.println(c>=b);   // c is greater than b  hence c>=b will return true
   }
 }

Output of this program:

a is greater than or equal to b is true
a is greater than or equal to c is false
c is greater than or equal to b is true






Please comment below to feedback or ask questions.

How to use Boolean logical operators will be explained in the next post




1 comment:

suresh ksv said...

Hi Arun, This is Suresh KSV

In S.O.P statement message and output message is different.Please change that in Program to demonstrate the relational operator '>=' (i.e. greater than or Equal to).

System.out.print(" a is less than or equal to b is ");
System.out.println(a>=b); //a and b are equal hence a>=b will return true
System.out.print(" a is less than or equal to c is ");
System.out.println(a>=c); // a is neither greater than c nor equal to c hence a>=c will return false
System.out.print(" c is less than or equal to b is ");
System.out.println(c>=b);

But Output is
a is greater than or equal to b is true
a is greater than or equal to c is false
c is greater than or equal to b is true

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