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Results and Demonstrations

This document presents sample code snippets and their corresponding outputs produced by the CodeSage interpreter.
Each snippet demonstrates how different language constructs — variables, expressions, conditionals, loops, and functions — are executed in the tree-walk interpreter.

1️.Variable Declaration & Assignment

x = 10
y = 5
print(x + y)
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2.Variable Declaration & Assignment

print (3 + 5 * 2 - 4 / 2)
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3️.Comparison & Logical Operators

a = 10
b = 20
print(a < b)
print(a > b)
print(a == b)
print(a != b)
print(a < b and b > 15)
print(a > b or a == 10)
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4.If–Else Statements

score = 72
if score >= 50:
    print("Pass")
else:
    print("Fail")
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5.If–Elif–Else Chain

marks = 85
if marks >= 90:
    print("Excellent")
elif marks >= 75:
    print("Good")
else:
    print("Needs Improvement")
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6.While Loop

i = 0
while i < 5:
    print(i)
    i = i + 1

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7️.For Loop (with range)

for i in range(3):
    print(i)
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8.Break and Continue

for i in range(5):
    if i == 2:
        continue
    if i == 4:
        break
    print(i)
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9.Function Definition and Return

def add(a, b):
    return a + b

result = add(4, 6)
print(result)
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10.Nested Function Calls

def square(x):
    return x * x

def double(y):
    return y + y

print(double(square(3)))
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11.Lists and Indexing

items = [10, 20, 30]
print(items[0])
items[1] = 100
print(items)

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12.Range Expression

for i in range(2, 8, 2):
    print(i)

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13.Len Function

nums = [1, 2, 3, 4]
print(len(nums))
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