Xiaoxi Pang xiaoxipang

Tech

Check the status of a tool sudo systemctl status docker

Create a new app
rails new <app_name>

Install the gems
bundle install or bundle, which is the alias of the previous command.

Start server
rails server

Spring is a dependency injection framework.

@Component will tell Spring to take over the instantiate of the class @Autowire will tell Spring to inject and instantiate the class in class

@Component
public class BusinessLogic(){
  // Dependency Injection
 @Autowire

Create a new M*N 2D array:

int[][] matrix = new int[n][m];//first is the row numbers, second is the column numbers

Get the length of the M*N 2D array:

int n = matrix.length;//n rows
int m = matrix[0].length;//m columns

	/**
	* String manipulation
	*/

	// 1. Parse string with delimiter
	String phone = "012-3456789";
	String[] output = phone.split("-");
	// Note: When split string with delimater with "." or " ", instead of directly using them, we have to using the double slash
	// to help, i.e.
	String[] digits = version.split("\\.");

	function insertionSort (nums) {
	for(let i = 1; i < nums.length; i++){
	let temp = nums[i];
	let j = i - 1;
	while(j >= 0 && temp < nums[j]){
	console.log(nums);
	nums[j+1] = nums[j];
	j--;
	}
	nums[j + 1] = temp;

	# If you come from bash you might have to change your $PATH.
	# export PATH=$HOME/bin:/usr/local/bin:$PATH

	# Add auto suggestions
	source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh

	# Remove Default username
	DEFAULT_USER=Zingoer

	# Path to your oh-my-zsh installation.

	{
	"workbench.startupEditor": "newUntitledFile",
	"breadcrumbs.enabled": true
	}