Which of the following is indicative of negative float?A.The late start date is earlier than the early start date.B.The critical path supports the imposed end date.C.The early finish date is equal to the late finish date.D.When leads are employed in the s

阅读下列Java程序，回答下列问题。
[Java 程序]
public int addAppTask(Activity activity, Intent intent,
TaskDescription description, Bitmap thumbnail) {
Point size = getSize1; //1
final int tw = thumbnail.getWidth1;
final int th = thumbnail.getHeight1;
if (tw != size.x || th != size.y) { //2,3
Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail
.getConfig1); //4
float scale;
float dx = 0, dy = 0;
if (tw * size.x ＞ size.y * th) { //5
scale = (float) size.x / (float) th; //6
dx = (size.y - tw * scale) * 0.5f;
} else { //7
scale = (float) size.y / (float) tw;
dy = (size.x - th * scale) * 0.5f;
}
Matrix matrix = new Matrix1;
matrix.setScale(scale, scale);
matrix.postTranslate((int) (dx + 0.5f), 0);
Canvas canvas = new Canvas(bm);
canvas.drawBitmap(thumbnail, matrix, null);
canvas.setBitmap(null);
thumbnail = bm;
}
if (description == null) { //8
description = new TaskDescription1; //9
}
} //10
1、请简述基本路径测试法的概念。（2分）
2、请画出上述程序的控制流图，并计算其控制流图的环路复杂度vfG.。（8分）
3、请给出问题2中控制流图的线性无关路径。（5分）

阅读下列Java程序，回答下列问题。 [Java 程序] public int addAppTask(Activity activity, Intent intent, TaskDescription description, Bitmap thumbnail) { Point size = getSize1; //1 final int tw = thumbnail.getWidth1; final int th = thumbnail.getHeight1; if (tw != size.x || th != size.y){ //2,3Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig1); //4 float scale; float dx = 0, dy = 0; if (tw * size.x ＞ size.y * th){ //5 scale = (float) size.x / (float) th; //6 dx = (size.y - tw * scale) * 0.5f; } else { //7 scale = (float) size.y / (float) tw; dy = (size.x - th * scale) * 0.5f; } Matrix matrix = new Matrix1; matrix.setScale(scale, scale); matrix.postTranslate((int) (dx + 0.5f), 0); Canvas canvas = new Canvas(bm); canvas.drawBitmap(thumbnail, matrix, null); canvas.setBitmap(null); thumbnail = bm; } if (description == null) { //8 description = new TaskDescription1; //9 } } //102.1、请简述基本路径测试法的概念。(2分)2.2、请画出上述程序的控制流图，并计算其控制流图的环路复杂度V(G)。(8分)2.3、请给出问题2中控制流图的线性无关路径。(5分)