tech-scripter
/ SuppressedExceptionExample.java
Last active
May 8, 2025 04:03
During a try block, an exception may trigger another while closing resources in finally. In a regular try, the original exception is replaced by the second. With try-with-resources, the second exception is suppressed and added to the original's suppressed exceptions, accessible via Throwable.getSuppressed().
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| import java.io.Closeable; | |
| import java.io.IOException; | |
| class Resource implements Closeable { | |
| private final String name; | |
| public Resource(String name) { | |
| this.name = name; | |
| } |
tech-scripter
/ TryWithResourcesExample.java
Last active
May 8, 2025 03:13
Starting with JDK 9, the resource specification in try can also include a variable that was declared and initialized earlier in the program. However, this variable must be effectively final, meaning that after being assigned an initial value, it cannot be reassigned to a new value.
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| import java.io.BufferedReader; | |
| import java.io.FileReader; | |
| import java.io.IOException; | |
| public class TryWithResourcesExample { | |
| public static void main(String[] args) { | |
| // The variable is declared and initialized earlier | |
| BufferedReader reader = null; |