[Task introduction]
1.Task description
One thread prints the Roman letters a through z on the screen, and the other thread prints the Greek letters α through ω on the screen
. Create the above two threads in the test program and start execution, printing Roman letters and Greek
letters alternately.
Requirements:
1. Use inheritance to implement multi-threading when printing Roman letters. Print "Rome" before printing each letter.
2. Printing Greek letters uses an interface to implement multi-threading. Print "Greece" before printing each letter.
【mission target】
Learn to analyze the implementation ideas of the program "printing Roman letters and Greek letters".
Independently complete the source code writing, compilation and operation of "printing Roman letters and Greek letters" based on ideas.
Master the implementation method of Java multi-threading.
[Implementation ideas]
1. Write a Roman class for printing Roman letters, inherit from Thread, and override the run method. Use a for loop
to print "Roman:" and the corresponding letters. Tip: loop part for (char c='a'; c<='z'; c++)
2. Write the Greek class for printing Greek letters, implement the Runnable interface, and override the run method. Use for
Loops to print "Greek:" and the corresponding letters. Tip: loop part for (char c='α '; c<='ω '; c++)
3. Write the ThreadDemo class, use the above two thread classes to create thread objects in the main method, and start execution.
[Implementation code]
package practice.exp12;
public class Roman extends Thread {
private char c;
public void run(){
for(char c='a';c<='z';c++) {
System.out.println("罗马：" + c);
}
}
}
package practice.exp12;
public class Greek implements Runnable{
private char c;
public void run(){
for (char c='α'; c<='ω'; c++){
System.out.println("希腊："+c);
}
}
}
package practice.exp12;
public class ThreadDemo {
public static void main(String[] args) {
Roman r = new Roman();
r.start();
Greek g = new Greek();
Thread thread = new Thread(g);
thread.start();
}
}
【operation result】
