本文目录一览：
- 1、java把运行结果输出到txt
- 2、如何用JAVA生成TXT文件
- 3、如何用java输出txt文件
- 4、JAVA 如何输出数据到TXT文件内
- 5、JAVA 如何实现docx文档转换成txt？
- 6、java 数据输出到txt文件
java把运行结果输出到txt
这个最主要的就是万年历算法，网上一搜就有 输出保存到新建的Txt文件很容易就是IO写入操作例如：
BufferedWriter writer = new BufferedWriter(new FileWriter(txt文件路径加路径名,
false));// true表示追加
writer.write(要写入的数据);
writer.close();
如何用JAVA生成TXT文件
生成TXT的方法有很多的。常用位字节流和字符流
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
public class TextFileGenerator {
public static void main(String[] args) throws Exception {
method1();
method2();
}
private static void method1() throws Exception {
String txtContent = "Hello World!";
File file = new File("test1.txt");
FileWriter fw = new FileWriter(file);
fw.write(txtContent);
fw.close();
}
private static void method2() throws Exception {
String txtContent = "Hello World!";
File file = new File("test2.txt");
FileOutputStream fos = new FileOutputStream(file);
fos.write(txtContent.getBytes());
fos.close();
}
}
如何用java输出txt文件
输入无需使用字节流，直接字符流读取即可。
private void input(String fileName) throws IOException {
try(BufferedReader reader = new BufferedReader(new FileReader(fileName))) {
String line;
while((line=reader.readLine()) != null) {
System.out.println(line);
}
}
}
同样输出，只要把Input换成Output;
private void output(String fileName, String content) throws IOException{
try(BufferedWriter writer = new BufferedWriter(new FileWriter(fileName))) {
writer.write(content);
writer.flush();
}
}
JAVA 如何输出数据到TXT文件内
package test;
import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import javax.imageio.ImageIO;
public class ReadColorTest {
/**
* 读取一张图片的RGB值
*
* @throws Exception
*/
public void getImagePixel(String image) throws Exception {
File fileCar = new File("D:\\car.txt");
FileOutputStream fos = new FileOutputStream(fileCar);
BufferedOutputStream bos = new BufferedOutputStream(fos);
int[] rgb = new int[3];
File file = new File(image);
BufferedImage bi = null;
try {
bi = ImageIO.read(file);
} catch (Exception e) {
e.printStackTrace();
}
int width = bi.getWidth();
int height = bi.getHeight();
int minx = bi.getMinX();
int miny = bi.getMinY();
System.out.println("width=" + width + ",height=" + height + ".");
bos.write(("width=" + width + ",height=" + height + ".\n").getBytes());
System.out.println("minx=" + minx + ",miniy=" + miny + ".");
bos.write(("minx=" + minx + ",miniy=" + miny + ".\n").getBytes());
for (int i = minx; i width; i++) {
for (int j = miny; j height; j++) {
int pixel = bi.getRGB(i, j); // 下面三行代码将一个数字转换为RGB数字
rgb[0] = (pixel 0xff0000) 16;
rgb[1] = (pixel 0xff00) 8;
rgb[2] = (pixel 0xff);
System.out.println("i=" + i + ",j=" + j + ":(" + rgb[0] + ","+ rgb[1] + "," + rgb[2] + ")");
bos.write(("i=" + i + ",j=" + j + ":(" + rgb[0] + ","+ rgb[1] + "," + rgb[2] + ")\n").getBytes());
}
}
}
/**
* 返回屏幕色彩值
*
* @param x
* @param y
* @return
* @throws AWTException
*/
public int getScreenPixel(int x, int y) throws AWTException { // 函数返回值为颜色的RGB值。
Robot rb = null; // java.awt.image包中的类，可以用来抓取屏幕，即截屏。
rb = new Robot();
Toolkit tk = Toolkit.getDefaultToolkit(); // 获取缺省工具包
Dimension di = tk.getScreenSize(); // 屏幕尺寸规格
System.out.println(di.width);
System.out.println(di.height);
Rectangle rec = new Rectangle(0, 0, di.width, di.height);
BufferedImage bi = rb.createScreenCapture(rec);
int pixelColor = bi.getRGB(x, y);
return 16777216 + pixelColor; // pixelColor的值为负，经过实践得出：加上颜色最大值就是实际颜色值。
}
/**
* @param args
*/
public static void main(String[] args) throws Exception {
int x = 0;
ReadColorTest rc = new ReadColorTest();
x = rc.getScreenPixel(100, 345);
System.out.println(x + " - ");
rc.getImagePixel("D:\\car.jpg");
}
}
JAVA 如何实现docx文档转换成txt？
docx文档没办法直接转成txt，两者文件格式不一样，需要你解析docx文档，把里面的内容提取出来，以你想要的形式转化成文本，通过io操作创建对应的txt文件，把文本输出到txt文件
java 数据输出到txt文件
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
public class TestBaiduKnow {
public static void main(String[] args) throws IOException {
FileOutputStream fs = new FileOutputStream(new File("D:\\text.txt"));
PrintStream p = new PrintStream(fs);
p.println(100);
p.close();
}
}
//简单的一个例子，来模拟输出
