Hello World in Julia

For loop in Julia

Last Updated : 19 Feb, 2020

For loops are used to iterate over a set of values and perform a set of operations that are given in the body of the loop. For loops are used for sequential traversal. In Julia, there is no C style for loop, i.e., for (i = 0; i < n; i++). There is a "for in" loop which is similar to for each loop in other languages. Let us learn how to use for in loop for sequential traversals. For-Loop-Julia

Syntax:

for iterator in range
    statements(s)
end

Here, ‘for‘ is the keyword stating for loop, ‘in‘ keyword is used to define a range in which to iterate, ‘end‘ keyword is used to denote the end of for loop.

Example:

# Julia program to illustrate  
# the use of For loop 
  
print("List Iteration\n")  
l = ["geeks", "for", "geeks"]  
for i in l 
    println(i)  
end 
  
# Iterating over a tuple (immutable)  
print("\nTuple Iteration\n")  
t = ("geeks", "for", "geeks")  
for i in t 
    println(i)  
end 
  
# Iterating over a String  
print("\nString Iteration\n")      
s = "Geeks"
for i in s  
    println(i)  
end 

Output:
For-loop-Output-01

Nested for-loop: Julia programming language allows to use one loop inside another loop. The following section shows an example to illustrate the concept.
Syntax:

for iterator in range
    for iterator in range 
        statements(s) 
        statements(s)
    end
end

Example:

# Julia program to illustrate  
# the use of Nested For-Loops 
  
# Outer For-loop 
for i in 1:5 
  
    # Inner For-loop 
    for j in 1:i  
          
        # Print statement 
        print(i, " ") 
    end 
    println()  
end 

Output:
For-loop-Output-02

Hello World in Julia

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