PrintWriter 用 Java 追加(CharSequence)方法,示例
原文:https://www . geesforgeks . org/print writer-appendcharsequence-method-in-Java-with-examples/
Java 中 PrintWriter 类的 append(CharSequence) 方法用于在流中写入指定的 CharSequence。这个字符序列值被作为一个参数。
语法:
public PrintWriter append(CharSequence charSequence)
参数:该方法接受一个强制参数字符序列,它是要写入流中的字符序列。
返回值:这个方法返回这个 PrintWriter 实例。
下面的方法说明了 append(CharSequence)方法的工作原理:
程序 1:
// Java program to demonstrate
// PrintWriter append(CharSequence) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter writer
= new PrintWriter(System.out);
// Write the CharSequence 'GeeksForGeeks'
// to this writer using append() method
// This will put the charSequence in the stream
// till it is printed on the console
writer.append("GeeksForGeeks");
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
GeeksForGeeks
程序 2:
// Java program to demonstrate
// PrintWriter append(CharSequence) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter writer
= new PrintWriter(System.out);
// Write the CharSequence 'GFG'
// to this writer using append() method
// This will put the charSequence in the stream
// till it is printed on the console
writer.append("GFG");
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
GFG
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