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2 ημέρες πριν · There's a few ways you could achieve that. Change the visibility of your Arraylist variables. First, the easiest way would be to change the visibility of your array lists to be protected.The protected visibility allow subclass to access a parent class property, but not external classes. By having protected property, you could simply call the add function on the array list directly:
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4 ημέρες πριν · List comprehensions offer a powerful and concise way to create lists in Python, combining the functionalities of both map and filter functions while maintaining readability. They are perfect for simple list transformations and filtering tasks.
3 ημέρες πριν · Then the code cross references another dictionary I have and compares the two, updating the value of the dictionary storing PDF fields if the keys match up. # Create a 2D list with each field title and an empty string. two_d_list = [[field, ''] for field in pdf_fields] return two_d_list. dictionary = {item[0]: item[1] for item in list2d}
5 ημέρες πριν · In Java, Strings are immutable, meaning once an object is created, it cannot be changed. On the other hand, StringBuilder is a mutable sequence of characters, which allows us to modify the contents without creating new objects. Therefore, we often convert a String to a StringBuilder for manipulations and then convert the StringBuilder object back to a String to obtain the result.
4 ημέρες πριν · A string constant pool is a separate place in the heap memory where the values of all the strings which are defined in the program are stored. When we declare a string, an object of type String is created in the stack, while an instance with the value of the string is created in the heap.
5 ημέρες πριν · A simple way to implement k stacks is to divide the array in k slots of size n/k each, and fix the slots for different stacks, i.e., use arr [0] to arr [n/k-1] for first stack, and arr [n/k] to arr [2n/k-1] for stack2 where arr [] is the array to be used to implement two stacks and size of array be n.
