20230628 _[19일차]_03. Thread (스레드)

 p. 525 예제

package threadex;

import java.awt.Toolkit;

// 520 페이지

public class Thread01 {
	public static void main(String[] args) {
		
		Toolkit toolkit = Toolkit.getDefaultToolkit();
		for (int i = 0; i < 5; i++) {
			toolkit.beep();
		}
		
	}
}

=> for문으로 돌리면 5번 출력되지만 실행은 1번(그 안에서 5회 도는거)

 

package threadex;

import java.awt.Toolkit;

// 520 페이지

public class Thread01 {
	public static void main(String[] args) throws InterruptedException {
		
		Toolkit toolkit = Toolkit.getDefaultToolkit();
		toolkit.beep();
		Thread.sleep(5000);	// 1초
		toolkit.beep();
		Thread.sleep(5000);	// 1초
		toolkit.beep();
		Thread.sleep(5000);	// 1초
		toolkit.beep();
		Thread.sleep(5000);	// 1초
		toolkit.beep();		
		
	}
}

=> 5초에 한번씩 실행됨

 

package threadex;

import java.awt.Toolkit;

// 520 페이지

public class Thread01 {
	public static void main(String[] args) throws InterruptedException {
		
		Toolkit toolkit = Toolkit.getDefaultToolkit();
		for (int i = 0; i < 5; i++) {
			toolkit.beep();
			Thread.sleep(3000);	// 1초
		}

	}
}

=> 3초에 한번씩 5회실행