diff --git a/chapter_1/18SW75.java b/chapter_1/18SW75.java
new file mode 100644
index 0000000..ee5938e
--- /dev/null
+++ b/chapter_1/18SW75.java
@@ -0,0 +1,5 @@
+class 18SW75{
+	public static void main(String args[]){
+	  System.out.println("this is 18SW75")
+	}
+}
\ No newline at end of file