What should the return type of method where there is no return value?
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Java Programming · all questionsJava Autoboxing
Java Autoboxing
practice.
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What data structure should be used when number of elements is fixed?
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What causes the program to exit abruptly and hence its usage should be minimalistic?
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Which of the following is good coding practice to determine oddity?
i)
ii)
i)
public boolen abc(int num)
{
return num % 2 == 1;
}ii)
public boolean xyz(int num)
{
return (num & 1)!= 0;
}Select an option to see the answer and solution.
Which one of the following causes memory leak?
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Which of the following is a best practice to measure time taken by a process for execution?
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What one of the following is best practice to handle Null Pointer exception?
i) int noOfStudents = line.listStudents().count;
ii) int noOfStudents = getCountOfStudents(line);
i) int noOfStudents = line.listStudents().count;
ii) int noOfStudents = getCountOfStudents(line);
public int getCountOfStudents(List line)
{
if(line != null)
{
if(line.listOfStudents() != null)
{
return line.listOfStudents().size();
}
}
throw new NullPointerException("List is empty");
}Select an option to see the answer and solution.
Which of the below is true about java class structure?
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Which of the below is false about java coding?
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Which is better in terms of performance for iterating an array?
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