Java 中 StringWriter getBuffer()方法，带示例
原文:https://www . geeksforgeeks . org/stringwriter-get buffer-in-Java-method-with-examples/
Java 中 StringWriter 类的 getBuffer() 方法用于获取这个 StringWriter 实例的 StringBuffer 表示。该方法不接受任何参数，返回所需的 StringBuffer 值。
语法:
public StringBuffer getBuffer()
参数:此方法接受不接受任何参数。
返回值:这个方法返回一个 StringBuffer 值，它是 StringWriter 实例的 StringBuffer 表示。
下面的方法说明了 getBuffer()方法的工作原理:
程序 1:
// Java program to demonstrate
// StringWriter getBuffer() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a StringWriter instance
StringWriter writer
= new StringWriter();
// Get the String
// to be written in the stream
String string = "GeeksForGeeks";
// Write the the string
// to this writer using write() method
writer.write(string);
// Get the StringBuffer of this StringWriter
StringBuffer stringBuffer = writer.getBuffer();
System.out.println("StringBuffer representation: "
+ stringBuffer);
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
StringBuffer representation: GeeksForGeeks
程序 2:
// Java program to demonstrate
// StringWriter getBuffer() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a StringWriter instance
StringWriter writer
= new StringWriter();
// Get the String
// to be written in the stream
String string = "GFG";
// Write the the string
// to this writer using write() method
writer.write(string);
// Get the StringBuffer of this StringWriter
StringBuffer stringBuffer = writer.getBuffer();
System.out.println("StringBuffer representation: "
+ stringBuffer);
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
StringBuffer representation: GFG
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