JAVA IO—PrintWriter
一.PrintWriter
PrintWriter用于将格式化数据写入底层Writer。
public static void main(String[] args) throws Exception{
PrintWriter printWriter = new PrintWriter(System.out);
printWriter.println(true);
printWriter.println(123);
printWriter.println(0.456);
printWriter.close();
}
二.PrintStream
PrintStream用于将格式化数据写入底层OutputStream。
public static void main(String[] args) throws Exception{
PrintStream printWriter = new PrintStream (System.out);
printWriter.println(true);
printWriter.println(123);
printWriter.println(0.456);
printWriter.close();
}