Which types of loops are used in Pascal?

When you write a program, there may be situation generates which requires a number of times to execute the same block of code. This time you use the loops that can be used in many ways. In general, the loop runs with a sequence order. The different types of loops used are shown below:

• While-do: It first tests the condition then execute the statement. It repeats the statement or a group of statements when the condition holds true and halts when condition becomes false.
• For-do loop: It abbreviates the code for the variable and repeats the multiple statements until the testing variable become false.
• Repeat-until loop: This is the same as while statement but it checks the condition at the end of the loop body. This means that the statements will execute at least once.
• Nested-loops: in this, you can use any loop inside any other loop.