From 9982138d034a730b11b879e5f7ed9bffb019ecba Mon Sep 17 00:00:00 2001
From: "zhiliang.liu" <zhiliang.liu@qishon.com>
Date: Thu, 6 Jun 2019 13:23:13 +0800
Subject: [PATCH] =?UTF-8?q?toString()=E3=80=81String.valueOf()=E3=80=81(St?=
 =?UTF-8?q?ring)=20=E7=9A=84=E5=9D=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 java/StringShitJudge.java | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 java/StringShitJudge.java

diff --git a/java/StringShitJudge.java b/java/StringShitJudge.java
new file mode 100644
index 0000000..b2811e5
--- /dev/null
+++ b/java/StringShitJudge.java
@@ -0,0 +1,22 @@
+package com.qishon.iss.qop.common;
+
+public class StringShitJudge {
+    public static void main(String[] args) {
+
+        String sex = null;
+        System.out.println("我的性别是" + judge(sex));
+    }
+
+    /**
+     * toString()、String.valueOf()、(String)
+     * @param sex
+     * @return
+     */
+    private static String judge(Object sex) {
+        if (String.valueOf(sex) != null) {
+            //do something...
+            return String.valueOf(sex);
+        }
+        return "";
+    }
+}
\ No newline at end of file
-- 
Gitee