diff --git a/java/stream/intstreamEasyMemo.java b/java/stream/intstreamEasyMemo.java
new file mode 100644
index 0000000..56855e8
--- /dev/null
+++ b/java/stream/intstreamEasyMemo.java
@@ -0,0 +1,2 @@
+//連番になってるカラム名を出力した
+System.out.println(java.util.stream.IntStream.rangeClosed(1, 60).mapToObj(i -> String.format("F36_%d", i)).collect(Collectors.joining(",")));