Java 中的 StringWriter flush()方法，示例
原文:https://www . geesforgeks . org/stringwriter-flush-in-method-in-Java-with-examples/
Java 中 StringWriter 类的 flush() 方法用于刷新编写器。通过刷新编写器，这意味着清除编写器中可能存在也可能不存在的任何元素。它既不接受任何参数，也不返回值。
语法:
public void flush()
参数:该方法不接受任何参数。
返回值:此方法不返回值。它只会让作者脸红。
下面的程序说明了 flush()方法的工作原理:
程序 1:
// Java program to demonstrate
// StringWriter flush() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
// The string to be written in the writer
String str = "GeeksForGeeks";
try {
// Create a StringWriter instance
StringWriter writer
= new StringWriter();
// Write the above string to this writer
// This will put the string in the writer
// till it is printed on the console
writer.write(str);
System.out.println(writer.toString());
// Now clear the writer
// using flush() method
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
GeeksForGeeks
程序 2:
// Java program to demonstrate
// StringWriter flush() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a StringWriter instance
StringWriter writer
= new StringWriter();
// Write the char to this writer
// This will put the char in the writer
// till it is printed on the console
writer.write(65);
System.out.println(writer.toString());
// Now clear the writer
// using flush() method
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
A
版权属于：月萌API www.moonapi.com，转载请注明出处
