山东大学计算机&软件学院Java期末试题09年【答案】.doc

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1、.....................最新资料整理推荐.....................12345678910DBACADBCCADB11121314151617181920DACABDBACDCAD一．选择题（最多2个选项）二．读程序题（1）0121（2）30.036.042.066.081.096.0（3）f1-1f2-1f2-2f3-1f0f2-4f2-5f1-2（4）12313221310.....................最新资料整理推荐.....................231321312三．写程序题（黑体字部分为标准答案）(1)packageexam;p

2、ublicclassThreeOne{publicstaticvoidDivideBySeven(intstart,intend){if((start>=0)&&(end>start)){for(intindex=start;index<=end;index++){if(index%7==0)System.out.println(index);}}else{System.out.println("起始和结束数字不正确，应输入非负整数，其end大于start");}}publicstaticvoidmain(String[]args){DivideBySeven(21,49);10......

3、...............最新资料整理推荐.....................}}(2)packageexam.three;publicabstractclassShape{privateStringdescription;Shape(Stringdesc){description=desc;}publicStringgetDescription(){returndescription;}publicvoidsetDescription(Stringdescription){this.description=description;}publicabstractdoublearea

4、();}packageexam.three;10.....................最新资料整理推荐.....................publicclassRectangleextendsShape{privatedoublewidth,height;Rectangle(Stringdesc,doublewidth,doubleheight){super(desc);this.width=width;this.height=height;}publicdoublearea(){returnwidth*height;}}packageexam.three;publicclassC

5、ircleextendsShape{privatedoubleradius;Circle(Stringdesc,doubleradius){super(desc);10.....................最新资料整理推荐.....................this.radius=radius;}publicdoublearea(){returnradius*radius*Math.PI;}}packageexam.three;publicclassSort{staticvoidsort(Shape[]s){intindex,indexOfNextSmallest;for(inde

6、x=0;index

7、x=startIndex+1;index