10.쓰레드

MultiThreadEx.java

public class MultiThreadEx {

	public static void main(String[] args) {
		Thread thread1 = new AlphabetThread();		//쓰레드 생성방법1
		Thread thread2 = new Thread( new DigitThread());	//쓰레드 생성방법2
		//매개변수로 Runnable이 구현된 객체를 받음

		new Thread( new Runnable() {	//쓰레드 생성방법3
			@Override
			public void run() {
				for( char c = 'A'; c<= 'z'; c++) {
					System.out.print( c );
					try {
						Thread.sleep(1000);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}			
		}).start();;

		thread1.start();
		thread2.start();
		}
}

DigitThread.java

public class DigitThread implements Runnable{
	public void run() {
		for(int i = 0; i < 10; i++) {
			System.out.print( i );
			try {
				Thread.sleep( 1000 );
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
}

AlphabetThread.java

public class AlphabetThread extends Thread{
	@Override
	public void run() {
		for( char c = 'a'; c <= 'z'; c++) {
			System.out.print( c );
			try {
				Thread.sleep( 1000 );
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}		
	}
}