I. Introduction A process is a running activity of a program with independent functions on a certain set of data. In other words, when the system schedules multiple CPUs, the basic unit of a program. Process is not an unfamiliar concept to most languages, as the world’s best language PHP" is certainly an exception. 2. Environment The… Read More »
Array Array deduplication Find the largest array Find the smallest array Returns the original array divided by an array whose size is the length Check the number of occurrences of an element in the array Flatten array Default depth expand all Compare two arrays and return the different elements Return the same elements in two arrays Delete… Read More »
This post will summarize 8 component communication mechanisms in Vue.Js. The daily development of component communication is close, and familiarity with component communication can better develop business. Vue.js Passing values between components 1. The parent component passes the value to the child component Generally, this involves the following procedures: Introduce child components in parent components Register subcomponents… Read More »
Q11: Discuss HashMap resizing in JDK 1.8 When putting an item, if the map finds that the current bucket occupancy has exceeded the proportion specified by the Load Factor, then a resize will occur. The resizing process simply means expanding the bucket to twice its original size, then recalculating the index and putting the nodes in the new… Read More »
Q6. How to specify the initial value of the Hashmap in JDK 1.8? Simply use the following declaration. Q7. How to ensure the initial value is 2 to the power of n? In order to ensure the initial value is 2 to the power of n, we have to leverage an algorithm that first finds the bit with… Read More »
Questions: Describe the Java garbage collection mechanism. What is GC? Why do we use GC? Advantages and principles of garbage collection, and describe two recovery mechanisms. What is the basic principle of the garbage collector? Can the garbage collector reclaim memory immediately? What’s the way to actively notify the virtual machine for garbage collection? What are the reference… Read More »
Heap Java’s heap is a runtime data area, and objects of classes allocate space from the heap. These objects are created by instructions such as new and destroyed by the garbage collector. The advantage of the heap is that it can allocate memory space dynamically. It is unnecessary to tell the compiler how much memory space is needed… Read More »