Java中Writer类的append(CharSequence)方法用于在编写器上写入指定的CharSequence。此CharSequence值用作参数。
用法:
public Writer append(CharSequence charSequence)
参数:此方法接受强制参数charSequence,该参数是要在编写器中写入的CharSequence。
返回值:此方法返回此Writer实例。
下面的方法说明了append(CharSequence)方法的用法方式:
示例1:
// Java program to demonstrate
// Writer append(CharSequence) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a Writer instance
Writer writer
= new PrintWriter(System.out);
// Write the CharSequence 'GeeksForGeeks'
// to this writer using append() method
// This will put the charSequence in the writer
// till it is printed on the console
writer.append("GeeksForGeeks");
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
GeeksForGeeks
示例2:
// Java program to demonstrate
// Writer append(CharSequence) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a Writer instance
Writer writer
= new PrintWriter(System.out);
// Write the CharSequence 'GFG'
// to this writer using append() method
// This will put the charSequence in the writer
// till it is printed on the console
writer.append("GFG");
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
GFG
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