Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Which values are marked for deallocation after the sequence?

 

Integerobj1=newInteger(10);Integerobj2=newInteger(20);Integerobj3=obj2;Integerobj4=newInteger(40);obj2=null;obj4=obj1;

 

 
 
only 20
 
only 40
 
20 and 40
 
no values are marked for deallocation

Which expressions for XXX, YYY, and ZZZ output "Great job" for scores above 90, and "Nice try" otherwise? Choices are in the form XXX / YYY / ZZZ.

 

intscore;score=scnr.nextInt();if(XXX){System.out.println(YYY);}else{System.out.println(ZZZ);}
 
score < 91 / "Great job" / "Nice try"
 
score < 91 / "Nice try" / "Great job"
 
score > 90 / "Nice try" / "Great job"
 
(Not possible for given code)

The program should determine the largest integer seen. What should XXX be if the input values are any integers (negative and non-negative)? All variables are integers and have unknown initial values.

 

for(i=0;i<10;++i){currValue=scnr.nextInt();if(i==0){// First iterationXXX;}elseif(currValue>maxSoFar){maxSoFar=currValue;}}

 

 
 
maxSoFar=0
 
maxSoFar=currValue
 
currValue=0
 
currValue=maxSoFar
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