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  • 在Eclipse中调用Algs4库

    首先下载Eclipse,我选择的是 Eclipse IDE for Java Developers64位版本,下载下来之后解压缩到喜欢的位置然后双击Eclipse.exe启动

    然后开始新建项目,File -> New Java Project,项目名随便写,如下图

    algs1

    右键src文件夹,Add -> New Java Class,这里需要注意Name一栏里填写的内容就是类名,这里我写了TestAlgs4,为了测试「算法 第四版」作者给的那个测试样例

    algs2

    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);
        }
    }
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  • 原文地址:https://www.cnblogs.com/mrchige/p/5957419.html
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