diff --git a/journals/2023_04_24.md b/journals/2023_04_24.md
index 2ec119c4..db5887e6 100644
--- a/journals/2023_04_24.md
+++ b/journals/2023_04_24.md
@@ -51,5 +51,10 @@
 			- With all my love,
 			- Sincerely, (formal/informal)
 		- How to politely remind someone to answer?
-		-
-		-
\ No newline at end of file
+- #Java
+	- | 
+	  0 in (arguments) | 1 in (argument) |
+	  | ---- | ---- | ---- |
+	  | 0 out (returned) | [`Runnable`](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Runnable.html) | [`Consumer`](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Consumer.html) |
+	  | 1 out (returned) | [`Supplier`](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Supplier.html) | [`Function`](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/function/Function.html) |
+	-
\ No newline at end of file