算法第四版(Algs4) 在Eclipse中调用Algs4.jar
Algs4.jar
1.下载地址(页面往下拉一拉,在末尾): https://algs4.cs.princeton.edu/windows/
2.添加步骤: Properties -> Java Build Path -> Libraries -> Add Extenernal JARs
测试用例:TestAlgs4.java
1.注:在Algs4.jar包下有默认包(default package)下也有相同测试代码,可直接运行。
代码如下:
import edu.princeton.cs.algs4.StdDraw;
public class TestAlgs4 {
public static void main(String[] args) {
StdDraw.setScale(-1, 1);
StdDraw.clear(StdDraw.BLACK);
StdDraw.setPenColor(StdDraw.WHITE);
StdDraw.square(0, 0, 1);
// write some text
StdDraw.setPenColor(StdDraw.WHITE);
StdDraw.text(0, +0.95, "Hello, world! This is a test Java program.");
// StdDraw.text(0, -0.95, "Close this window to finish the installation.");
// draw the bullseye
StdDraw.setPenColor(StdDraw.BOOK_BLUE);
StdDraw.filledCircle(0, 0, 0.9);
StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.filledCircle(0, 0, 0.8);
StdDraw.setPenColor(StdDraw.BOOK_BLUE);
StdDraw.filledCircle(0, 0, 0.7);
StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.filledCircle(0, 0, 0.6);// draw a picture of the textbook
StdDraw.picture(0, 0, "cover.jpg", 0.65, 0.80);
}
}
2.运行结果
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