How Does the Java `continue` Keyword Control Loop Iteration?
The "Continue" Keyword in Java: A Deeper Understanding
The "continue" keyword is an escape sequence in Java that allows for controlled iteration within a loop. It interrupts the current execution of the loop and skips the remaining statements within that iteration.
How it Works:
Unlike the "break" statement, which completely exits a loop, "continue" skips only the remaining code block in the current iteration. After being executed, the loop continues with the next iteration.
When to Use It:
The "continue" keyword is typically used to skip over elements or iterations that do not meet certain conditions. It can be particularly useful in scenarios where:
- You want to filter out specific values or elements from a collection.
- You want to skip certain processing or calculations based on certain criteria.
- You want to streamline loop execution by skipping unnecessary code blocks.
For example, consider a loop that iterates over a list of numbers. If you want to skip all odd numbers, you can use the "continue" statement within the loop to skip the print statement for odd numbers:
for (int num : numbers) { if (num % 2 != 0) { continue; } System.out.println(num); }
In this case, when the loop encounters an odd number, the "continue" statement skips the print statement, effectively skipping that particular iteration.
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