StringWriter類別是Writer類別的子類，它將字串寫入輸出流。為了寫入字串，該字元流將字串收集到字串緩衝區中，然後建構一個字串。 StringWriter的緩衝區會根據資料自動增長。 StringWriter類別的重要方法有write()、append()、getBuffer()、flush()和close()。 p>
public class StringWriter extends Writer
import java.io.*;
public class StringWriterTest {
public static void main(String args[]) {
String str = "Welcome to Tutorials Point";
try {
StringWriter sw = new StringWriter();
sw.write(str);
StringBuffer sb = new StringBuffer();
sb = sw.getBuffer();
System.out.println("StringBuffer: "+ sb);
System.out.println("String written by StringWriter: "+ sw);
sw.close();
} catch (IOException ioe) {
System.out.println(ioe);
}
}
}StringBuffer: Welcome to Tutorials Point String written by StringWriter: Welcome to Tutorials Point
以上是StringWriter在Java中的重要性是什麼？的詳細內容。更多資訊請關注PHP中文網其他相關文章！
