以下實例示範如何透過setPriority() 方法來設定執行緒的優先權：
/*
author by w3cschool.cc
SimplePriorities.java
*/public class SimplePriorities extends Thread {
private int countDown = 5;
private volatile double d = 0;
public SimplePriorities(int priority) {
setPriority(priority);
start();
}
public String toString() {
return super.toString() + ": " + countDown;
}
public void run() {
while(true) {
for(int i = 1; i < 100000; i++)
d = d + (Math.PI + Math.E) / (double)i;
System.out.println(this);
if(--countDown == 0) return;
}
}
public static void main(String[] args) {
new SimplePriorities(Thread.MAX_PRIORITY);
for(int i = 0; i < 5; i++)
new SimplePriorities(Thread.MIN_PRIORITY);
}}以上程式碼運行輸出結果為：
Thread[Thread-1,1,main]: 5 Thread[Thread-2,1,main]: 5 Thread[Thread-3,1,main]: 5 Thread[Thread-0,10,main]: 5 Thread[Thread-3,1,main]: 4 Thread[Thread-0,10,main]: 4 Thread[Thread-1,1,main]: 4 Thread[Thread-5,1,main]: 5 Thread[Thread-4,1,main]: 5 Thread[Thread-2,1,main]: 4 Thread[Thread-0,10,main]: 3 Thread[Thread-1,1,main]: 3 Thread[Thread-4,1,main]: 4 Thread[Thread-2,1,main]: 3 ……
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