# Java - `Writer`到`String`的轉換 > 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); ?? ?} } ``` **輸出：** ```java abc xyz ```