Primitive Types

Which for-loop declaration correctly traverses an integer array named 'numbers' from its end to its beginning?

What should replace 'XXXX' in the following snippet to correctly handle exceptions that may arise from file operations?

java
try (FileReader fr = new FileReader("file.txt")) {
    // read file 
} catch (XXXX e) {
    System.out.println("An error occurred.");
}

When implementing an interface 'X' containing a default method 'foo', what happens if both superclass 'Y' and subclass 'Z' do not override 'foo'?

Given a double variable distance = 8.5, which expression changes its value to half of its original?

What is printed as a result of executing System.out.println(9 / "3".length()); ?

If we want to insert a new value into a sorted array while maintaining its order, what typical algorithm must be used?

Which algorithmic approach would likely be most efficient for finding an item in a balanced binary search tree?

What is the result of 'value--' if value is initially 8?

What will be the output of the following code if the integer value 0 is passed to it?

java
try {
    System.out.println(10 / a);
} catch (ArithmeticException e) {
    System.out.println("Error");
}

When comparing recursion and iteration for solving problems, what kind of scenarios might favor recursive solutions over iterative ones for equal efficiency?