Java中的死鎖和非死鎖結(jié)果是兩種不同的情況。死鎖指兩個或多個進(jìn)程之間互相持有其他進(jìn)程正在請求的資源的情況，導(dǎo)致這些進(jìn)程都無法繼續(xù)執(zhí)行，陷入了死循環(huán)。非死鎖則是指沒有任何進(jìn)程持有其他進(jìn)程正在請求的資源。

一個典型的死鎖的例子是兩個線程互相持有對方需要的鎖，導(dǎo)致雙方都無法繼續(xù)執(zhí)行下去。例如：

public class DeadlockExample {
public static void main(String[] args) {
Object lock1 = new Object();
Object lock2 = new Object();
Thread thread1 = new Thread(new Runnable() {
@Override
public void run() {
synchronized (lock1) {
System.out.println("Thread 1 acquired lock 1");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
synchronized (lock2) {
System.out.println("Thread 1 acquired lock 2");
}
}
}
});
Thread thread2 = new Thread(new Runnable() {
@Override
public void run() {
synchronized (lock2) {
System.out.println("Thread 2 acquired lock 2");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
synchronized (lock1) {
System.out.println("Thread 2 acquired lock 1");
}
}
}
});
thread1.start();
thread2.start();
}
}

代碼中創(chuàng)建了兩個對象鎖lock1和lock2，然后啟動了兩個線程。兩個線程都先獲取一個鎖，等待一段時間后再嘗試獲取另一個鎖。由于線程1持有l(wèi)ock1，而線程2持有l(wèi)ock2，它們都在等待對方釋放鎖而無法繼續(xù)執(zhí)行，形成了死鎖狀態(tài)。

相比之下，非死鎖的情況則是所有線程都沒有互相持有對方需要的資源。例如下面的代碼：

public class NonDeadlockExample {
public static void main(String[] args) {
Object lock1 = new Object();
Object lock2 = new Object();
Thread thread1 = new Thread(new Runnable() {
@Override
public void run() {
synchronized (lock1) {
System.out.println("Thread 1 acquired lock 1");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
});
Thread thread2 = new Thread(new Runnable() {
@Override
public void run() {
synchronized (lock2) {
System.out.println("Thread 2 acquired lock 2");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
});
thread1.start();
thread2.start();
}
}

這個代碼中，兩個線程分別持有兩個不同的鎖，它們互相之間不需要對方持有的鎖，因此不會出現(xiàn)死鎖。