From 893910086475062b47eb7d87d7fc517e79353612 Mon Sep 17 00:00:00 2001
From: somber dake <984591577@qq.com>
Date: Sun, 20 Sep 2020 10:36:43 +0800
Subject: [PATCH] Add new file

---
 SY03.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 SY03.md

diff --git a/SY03.md b/SY03.md
new file mode 100644
index 0000000..340656a
--- /dev/null
+++ b/SY03.md
@@ -0,0 +1,22 @@
+package test;
+
+import java.util.Arrays;
+
+public class CopyArry {
+	public static void main (String args[])  {
+		int [] a = {1,2,3,4,500,600,700,800};
+		int [] b,c,d;
+		System.out.println(Arrays.toString(a));
+		b = Arrays.copyOf(a, a.length);
+		System.out.println(Arrays.toString(b));
+		c=Arrays.copyOfRange(a, 0, 4);
+		System.out.println(Arrays.toString(c));
+		d=c=Arrays.copyOfRange(a, 4, 8);
+		System.out.println(Arrays.toString(d));
+		c[c.length-1] = -100;
+		c[d.length-1] = -200;
+		System.out.println(Arrays.toString(a));
+		
+	}
+
+}
-- 
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