剑指Offer，旋转字符串

zebinh · zebinh · commit fb64162db37f · 2019-12-25T20:18:58.000+08:00
diff --git a/swordoffer/LeftRotateStringSolution.java b/swordoffer/LeftRotateStringSolution.java
@@ -0,0 +1,21 @@
+/**
+ * ��ָOffer������ת�ַ���
+ */
+
+public class LeftRotateStringSolution {
+
+    public static void main(String[] args) {
+        
+        System.out.println(LeftRotateString("abcXYZdef", 3));
+    }
+
+    public static String LeftRotateString(String str,int n) {
+        
+        if(str == null || str.length() <= 0) {
+            return str;
+        }
+
+        n = n % str.length();
+        return str.substring(n, str.length()) + str.substring(0, n);
+    }
+}
