Java中的 PrintStream append(CharSequence) 方法及示例
Java中PrintStream类的append(CharSequence)方法用于在流上写入指定的CharSequence。将此 CharSequence 值作为参数。
句法:
public PrintStream append(CharSequence charSequence)
参数:此方法接受一个强制参数charSequence ,它是要写入 Stream 的 CharSequence。
返回值:此方法返回此 PrintStream 实例。
下面的方法说明了 append(CharSequence) 方法的工作:
方案一:
// Java program to demonstrate
// PrintStream append(CharSequence) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintStream instance
PrintStream stream
= new PrintStream(System.out);
// Write the CharSequence 'GeeksForGeeks'
// to this stream using append() method
// This will put the charSequence in the stream
// till it is printed on the console
stream.append("GeeksForGeeks");
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
GeeksForGeeks
方案二:
// Java program to demonstrate
// PrintStream append(CharSequence) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintStream instance
PrintStream stream
= new PrintStream(System.out);
// Write the CharSequence 'GFG'
// to this stream using append() method
// This will put the charSequence in the stream
// till it is printed on the console
stream.append("GFG");
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
GFG