When to use try-catch inside for loop or outside loop in java
2 min readNov 1, 2024
In Java, whether to put a try-catch
block inside or outside a for
loop depends on the specific behavior you want:
try-catch
Inside the Loop :
When the try-catch
block is inside the loop, each iteration can handle its own exception individually. This approach is useful if you want the loop to continue running even if an exception occurs in a single iteration.
for (int i = 0; i < items.size(); i++) {
try {
// Code that might throw an exception
process(items.get(i));
} catch (Exception e) {
System.out.println("Error processing item " + i + ": " + e.getMessage());
}
}
Pros:
- Allows handling exceptions for each iteration separately.
- Loop continues despite exceptions in individual iterations.
Cons:
- May be less efficient if exception handling is complex (since it’s done multiple times).
2. try-catch
Outside the Loop :
When the try-catch
block is outside the loop, the exception will break the loop as soon as it’s thrown, and the loop will stop executing.
try {
for (int i = 0; i < items.size(); i++) {
// Code that might throw an exception…