Whenever we need to compare the results of two expressions or operands in a program then the equality and relational operators are used to know whether an operand is equal, not equal, greater than, less than to another operand.
Equality and Relational Operators
Whenever we need to compare the results of two expressions or operands in a program then the equality and relational operators are used to
know whether an operand is equal, not equal, greater than, less than to another operand. There are different types of equality and relational operators mentioned in a table given below:
| Symbol | Name of the Operator | Example | Operation |
| = = | Equal to | a = = b | a is equal to b |
| != | Not equal to | a ! = b | a is not equal to b |
| > | Greater than | a > b | a is greater than b |
| < | Less than | a < b | a is less than b |
| >= | Greater than or equal to | a > = b | a is greater than or equal to b |
| <= | Less than or equal to | a > = b | a is less than or equal to b |
The Equality operator "= =" differs
from an assignment operator "=" i.e. the equality
operator is used to determine whether one operand is equal to another
operand or not while the assignment operator is used to assign a value to a
variable.
All these operators
are often used in the control structures such as if, do, while with
the conditional operators to make decisional expressions.
Lets have an example implementing these operators:
class EquityOperator {
System.out.println("value of x is not equal to the value of y"); if(x > y) System.out.println("value of x is greater then the value of y"); if(x < y) System.out.println("value of x is less then the value of y"); if(x >= y) System.out.println("value of x is greater then or equal to the value of y"); if(x <= y) System.out.println("value of x is less then or equal to the value of y"); } } |
Output of the Program:
| C:\nisha>javac EquityOperator.java
C:\nisha>java EquityOperator value of x is not equal to the value of y value of x is less then the value of y value of x is less then or equal to the value of y |