# Java - `Writer`到`String`的转换

> 原文： [https://beginnersbook.com/2015/05/java-writer-to-string-conversion/](https://beginnersbook.com/2015/05/java-writer-to-string-conversion/)

```java
package com.beginnersbook.string;
import java.io.StringWriter;

public class WriterToString {
    public static void main(String args[]){
        // create a new writer
          StringWriter sw = new StringWriter();

          // append a char       
          sw.append("abc");
          sw.append(" xyz");

          String str = sw.toString();
          System.out.println(str);
    }
}

```

**输出：**

```java
abc xyz

```