# C Logical Operators Examples

Try following example to understand all the Logical operators. Copy and paste following C program in test.c file and compile and run this program.

 ```main() { int a = 21; int b = 10; int c ; if( a == b ) { printf("Line 1 - a is equal to b\n" ); } else { printf("Line 1 - a is not equal to b\n" ); } if ( a < b ) { printf("Line 2 - a is less than b\n" ); } else { printf("Line 2 - a is not less than b\n" ); } if ( a > b ) { printf("Line 3 - a is greater than b\n" ); } else { printf("Line 3 - a is not greater than b\n" ); } /* Lets change value of a and b */ a = 5; b = 20; if ( a <= b ) { printf("Line 4 - a is either less than or euqal to b\n" ); } if ( b >= a ) { printf("Line 5 - b is either greater than or equal to b\n" ); } if ( a && b ) { printf("Line 6 - Condition is true\n" ); } if ( a || b ) { printf("Line 7 - Condition is true\n" ); } /* Again lets change the value of a and b */ a = 0; b = 10; if ( a && b ) { printf("Line 8 - Condition is true\n" ); } else { printf("Line 8 - Condition is not true\n" ); } if ( !(a && b) ) { printf("Line 9 - Condition is true\n" ); } } ```

This will produce following result

 ```Line 1 - a is not equal to b Line 2 - a is not less than b Line 3 - a is greater than b Line 4 - a is either less than or euqal to b Line 5 - b is either greater than or equal to b Line 6 - Condition is true Line 7 - Condition is true Line 8 - Condition is not true Line 9 - Condition is true ```

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