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Copy pathAlternatePrintingExample.java
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70 lines (56 loc) · 1.87 KB
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public class AlternatePrintingExample {
public static void main(String[] args) {
NumberPrinter printer = new NumberPrinter();
// 创建并启动第一个线程，打印奇数
Thread oddThread = new Thread(new OddNumberTask(printer));
oddThread.start();
// 创建并启动第二个线程，打印偶数
Thread evenThread = new Thread(new EvenNumberTask(printer));
evenThread.start();
}
}
class NumberPrinter {
private int number = 1;
private final int maxNumber = 10;
private boolean isOddTurn = true; // 控制奇偶数交替打印的标志
// 打印奇数
public synchronized void printOdd() {
while (number <= maxNumber) {
if (isOddTurn && number % 2 != 0) {
System.out.println(Thread.currentThread().getName() + " - Odd: " + number);
number++;
isOddTurn = false; // 切换到偶数的轮次
}
}
}
// 打印偶数
public synchronized void printEven() {
while (number <= maxNumber) {
if (!isOddTurn && number % 2 == 0) {
System.out.println(Thread.currentThread().getName() + " - Even: " + number);
number++;
isOddTurn = true; // 切换到奇数的轮次
}
}
}
}
class OddNumberTask implements Runnable {
private final NumberPrinter printer;
public OddNumberTask(NumberPrinter printer) {
this.printer = printer;
}
@Override
public void run() {
printer.printOdd();
}
}
class EvenNumberTask implements Runnable {
private final NumberPrinter printer;
public EvenNumberTask(NumberPrinter printer) {
this.printer = printer;
}
@Override
public void run() {
printer.printEven();
}
}