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[docs fix]typo
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@ -4,7 +4,7 @@ category: 计算机书籍
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icon: distributed-network
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icon: distributed-network
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**[《Designing Data-Intensive Application》](https://book.douban.com/subject/30329536/)**(DDIA,数据密集型应用系统设计)
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**[《Designing Data-Intensive Application》](https://book.douban.com/subject/30329536/)** (DDIA,数据密集型应用系统设计)
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@ -481,7 +481,7 @@ public final class String implements java.io.Serializable, Comparable<String>, C
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#### 字符串拼接用“+” 还是 StringBuilder?
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#### 字符串拼接用“+” 还是 StringBuilder?
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Java 语言本身并不支持运算符重载,“+”和“+=”是专门为 String 类重载过的运算符,也是 Java 中仅有的两个重载过的元素符。
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Java 语言本身并不支持运算符重载,“+”和“+=”是专门为 String 类重载过的运算符,也是 Java 中仅有的两个重载过的运算符。
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```java
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```java
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String str1 = "he";
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String str1 = "he";
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