Commit 7c42197

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add EnumSingleton

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	`1`	`+package com.java.design.singleton;`
	`2`	`+`
	`3`	`+/**`
	`4`	`+ * 枚举实现单例最佳`
	`5`	`+ * 避免反射攻击、避免序列化问题`
	`6`	`+ *`
	`7`	`+ * @author Administrator`
	`8`	`+ *`
	`9`	`+ */`
	`10`	`+public class EnumSingleton {`
	`11`	`+`
	`12`	`+ INSTANCE;`
	`13`	`+`
	`14`	`+ public EnumSingleton getInstance() {`
	`15`	`+ return INSTANCE;`
	`16`	`+ }`
	`17`	`+}`

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