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Then, assign the value of temp to ‘num2’. Finally, Print the values of ‘num1’ and ‘num2’ which
are now swapped. If you follow the steps correctly in sequence, you will achieve the output.
This is how sequencing in programming works.
Subject Enrichment
Example 2: Pseudocode to check if the citizen is a senior citizen or not on the basis of
age entered by the user. (A person is considered a senior citizen if his/her age is above
60 years old.) (Selection)
Program Start
int age=61;
if (age>=60)
print(“Person is a senior citizen”);
else
print(“Person is not a senior citizen”);
Program End
Explanation: In this, the pseudocode will check if the person is a senior citizen or not on the
basis of age entered by the user. You will see that the program makes a ‘selection’ depending
on the age entered by the user. If the age is more than or equal to 60, the program enters the
if block. If the age is less than 60, the program enters else block.
Subject Enrichment
Example 3: Flowchart to print all the natural numbers from 1 to 100. (Iteration)
Start
Start a loop from 1 to 100
Is the number a Yes Print the number
Natural Number?
No
Move to next number in the loop
Did the loop No
reach 100?
Yes
Stop
Sequencing with Block Coding 21

