石化盈科笔试题

石盈试

1.程序执行结果是什.

{

i}{stub}

cv=

out.println(+cv.i}cv=

i=25;out.println(i);}}2.程序输出结果是什

A{{out.println(a"}

}

classextendsA{publicvoidshow(){System.out.println("classashow}}publicclassInherit{/***@paramargs*/publicstaticvoidmain(String[]args)AanewB();if(ainstanceofA)System.out.println("A");}if(ainstanceofB)System.out.println("B");}}}程序输出结果是什么publicclassPolymorphic{/***@paramargs*/publicstaticvoidmain(String[]args)//TODOAuto-generatedmethodstubParentpare=newSub();pare.show();

}}classParent{publicvoidshow(){System.out.println("classParentshow}}classSubextendsParentpublicvoidshow(){System.out.println("classSubshow);}}程序输出结果是什么publicclasstryCatch{/***@paramargs*/publicstaticvoidmain(String[]args)try{System.out.println("begin");System.out.println("end");return;}catch(Exception{System.out.println("excepton");}finallySystem.out.println("finally"}}

}对一个整型数组进行序publicclassMySort{publicstaticvoidmain(String[]args)MySortsort=newMySort();int[]arr=newint[]{3,5,400,22,5};sort.sort(arr);for(inti:arr){System.out.print(i",");}}publicvoidsort(int[]targetArr){//小到的序inttemp=0;for(inti=0;<targetArr.length;i++)for(intj=i;<targetArr.length;j++){if(targetArr[i]<targetArr[j])//法：temptargetArr[i];targetArr[i]=targetArr[j];targetArr[j]=temp;/**/法:targetArr[i]=targetArr[i]+*targetArr[j]=targetArr[i]targetArr[j];targetArr[i]*=targetArr[i]targetArr[j];*///法：//targetArr[i]=targetArr[i]^targetArr[j];//targetArr[j]=targetArr[i]^targetArr[j];//targetArr[i]=targetArr[i]^targetArr[j];}}

}}}6.sql题目有两张student,和scope学号,名性别年龄Scope:学