IN JAVA Which XXX is needed for enterNumber() to read a value from standard input? public int enterNumber() XXX{ int value; value = System.in.read(); return value; } A. import java.io B. throws SystemException C. nothing is needed D. throws IOException

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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IN JAVA

Which XXX is needed for enterNumber() to read a value from standard input?

 

public int enterNumber() XXX{
int value;
value = System.in.read();
return value;
}
 
A. import java.io
B. throws SystemException
C. nothing is needed
D. throws IOException
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