java语言等级考试参考题目

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1、file:///D

2、/Java4-2010-7/Java4填空题1.htm1下面在空白处填入正确的代码是：publicclassjump{publicstaticvoidmain(String[]args){doubleh=200,s=150;_______________________{s=s+h;h=h/2;}System.out.println(s);System.out.println(h/2);}}2在空白处填入合适的代码，使得程序完整。publicclassten{publicstaticvoidmain(String[

3、]args){longsum=0;longfac=1;_______________________{fac=fac*i;sum+=fac;}System.out.println(sum);}}3在空白处填入合适的代码，使得代码完整。publicclassold{publicstaticvoidmain(String[]args){intage=20;for(inti=1;i<=10;i++){________________}System.out.println(age);}}4请在空白处填入正确的代码。publicclasskai

4、fang{publicstaticvoidmain(String[]args){intsum=4;___________System.out.println(sum);file:///D

5、/Java4-2010-7/Java4填空题1.htm(1of13)2010-7-2221:58:27file:///D

6、/Java4-2010-7/Java4填空题1.htmsum=sum*9;System.out.println(sum);for(j=3;j<=9;j++){sum=sum*9;System.out.println(j+sum);

7、}}}5请在空白处填入正确的代码publicclassjihe{publicstaticvoidmain(String[]args){for(inti=1;i<10;i++){for(intj=1;j<=i;j++){System.out.print(j+"*"+i+"="+j*i+"");___if(j*i<10)__{System.out.print("");}}System.out.println();}}}6请在空白处填上合适的代码，使得程序完整publicclasstest{publicstaticvoidmain(Stri

8、ng[]args){intpre=1,mid=1;intlast=pre+mid;inti=20;__________________________{pre=mid;mid=last;last=pre+mid;}System.out.println(last*4);}}7在空白处填入合适代码，使得程序能运行出来结果publicclasstest{publicstaticvoidmain(String[]args){inta,b,c;____for(intabc=100;abc<=999;abc++)_{a=abc/100;b=abc

9、%100/10;c=abc%10;if(a*a*a+b*b*b+c*c*c==a*100+b*10+c){System.out.println(a*100+b*10+c);}}}}8请问在空白处调用什么类？importjava.io.FileWriter;importjava.io.__IOException_______;publicclasstest{publicstaticvoidmain(String[]args){int[]scores={68,72,81,90,86};doublesum=0;for(intscore:sc

10、ores){sum+=score;}doubleavg=sum/scores.length;System.out.println(avg);try{FileWriterfw=newFileWriter("c:\score",true);for(intscore:scores){fw.write(scores+"");}fw.write("avg="+avg);}catch(IOExceptione){e.printStackTrace();}}}9请在空白处填上合适的代码。publicstaticvoidmain(String[]a

11、rgs){intsum=0;for(inti=101;i<=1000;i++){if(isSz(i)){System.out.println(i);sum++;}}file:///D

12、/Java4-2010-7/Java