<span>When a primary key combines two or more fields, it is called a ____ key
the answer is Constructed key</span>
Explanation:
Time Constraint and Time Consuming: Nobody would carry out business when the market was closed. ... Limited Space: The old economy depended on physical space such as market places and offices before business transaction could take place.
The answer is true because it solvers by Parameters
Answer:
throw and throws represent different constructs in Java programming language.
Explanation:
throw is used to explicitly throw an Exception from within a code segment.
For example:
public void throw_test(String str){
if(str==null) throw new NullPointerException();
}
throws is used to specify an exception list which may be thrown by a method:
For example:
public String readFromFile(File f) throws IOException {
.....
// Some code fragment which could throw a IOException
}
