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Learning Java for Python Programmers

Control Flow Statements

Learn how Java control flow statements such as if and else structures work, including the use of curly braces and boolean operators. Understand differences from Python's indentation and elif usage to write effective conditional logic in Java.

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Control flow statements are programming constructs that let the execution of certain blocks of code be contingent on certain conditions or be repeated based on loops. They enable programmers to set the order in which a program executes its instructions.

The if statement

In Python, the if block is a conditional statement that executes a set of codes only when a specified condition is true. In Python, indentation after a colon (:) defines the scope of the block.

Python 3.5
x = 10
# Check if x is greater than 0
if x > 0:
  print("x is positive")
else:
  print("x is negative")


In Java, the if statement is ...