[JAVA] How to automatically generate a constructor in Eclipse


I touched Java and Eclipse for the first time in a long time. When I used to use Eclipse a long time ago, I felt that it was difficult to use and I didn't like it, but I thought that it would be quite easy to use if I remember the shortcuts and functions. For the time being, this time I will write about how to automatically generate a constructor.

Automatically generate constructor from field

For example, suppose you have a class like this:

public class Dog {
	String name;

	void bark() {
		System.out.println(name + ":「Bowwow.」");

It is troublesome to manually enter the constructor here, so select Source → Generate Constructor using Fields ... from the menu bar, select the field you want to set, and click generate to automatically generate the constructor. con1.png con2.png

public class Dog {
	String name;

	void bark() {
		System.out.println(name + ":「Bowwow.」");

	public Dog(String name) {
		this.name = name;

This will save you time.

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