Java.io.PrintWriter.print double() 方法 Java.io.PrintWriter.print Char Array() 方法 Java.io.PrintWriter.print float() 方法 Java.io.PrintWriter.print double() 方法 package com.codingdict; import java.io.*; public class PrintWriterDemo { public static void main(String[] args) { double d = 1234.567; // create a new writer PrintWriter pw = new PrintWriter(System.out); // print double pw.print(d); // change the line pw.println(); // print another double pw.print(987.654); // flush the writer pw.flush(); } } Java.io.PrintWriter.print Char Array() 方法 Java.io.PrintWriter.print float() 方法