我有几个java文件。Main.java使用文件中的Picture类Picture.java。我想知道如何从命令行编译和运行 Main ?
这是Main.java:
package com.company;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class Main {
static Picture pic = null; // Picture class ???
public static void main(String[] args) {
long t1, t2;
String name = "bears.jpg";
pic = new Picture(name);
t1 = System.nanoTime();
pic.new_img = meanFilter(pic.img);
t2 = System.nanoTime();
pic.writeImage();
calculateTime(t1, t2);
}
和Picture.java:
...
public class Picture {
public BufferedImage img;
public BufferedImage new_img;
...
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