2976358
Questão 1
Questão
The default implementation of the equal method compares only whether two object variables refer to the same object
Responda
- True
- False
Questão 2
Questão
See the following equals method defined in class BankAccount.
class BankAccount(){
String accNumber;
int accType;
public boolean equals (Object obj){
if(obj instanceOf BankAccount){
BankAccount b = (BankAccount) obje;
return(acctumber.equals(b.accNumber) && accType == b.accType);
}
return false;
}
}
Does this method violates the contract for the equals method?
Responda
- True
- False
Questão 3
Questão
Why is the next equals method in conflict with the contract for the equals method
public boolean equals (Object anObject){
return true;
}
Responda
-
Because it returns true, even for null values passed to this method
-
Because it doesn't compare the values of the instance variables of the objects
-
Both answers are true
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