Java ئاتىسى 22 يىل بۇرۇن يازغان بىر ئابزاس كود
     ئونۋېرسال   جەمى 1 باھا

Java ئاتىسى 22 يىل بۇرۇن يازغان بىر ئابزاس كود

     ئونۋېرسال     جەمى 1 باھا

رەسىم چۈشەندۈرۈلىشى

كودنىڭ مەزمۇنى تۆۋەندىكىچە:

PingPong class PingPong extends Thread {
String word; // what word to print
int delay; // how long to pause

PingPong(String whatToSay, int delayTime) {
word = whatToSay;
delay = delayTime;
}

public void run() {
try {
for (;;) {
System.out.print(word + " ");
sleep(delay); // wait until next time
}
} catch (InterruptedException e) {
return; // end this thread
}
}
public static void main(String[] args) {
new PingPong("ping", 33).start(); // 1/30 second
new PingPong("PONG", 100).start(); // 1/10 second
}
}

[Listing Two]

Account class Account {
private double balance;

public Account(double initialDeposit) {
balance = initialDeposit;
}
public synchronized double getBalance() {
return balance;
}
public synchronized void deposit(double amount) {
balance += amount;
}
}

[Listing Three]

synchronized_abs /* make all elements in the array nonnegative /
public static void abs(int[] values) {
synchronized (values) {
for (int i = 0; i < values.length; i++) {
if (values[i] < 0)
values[i] = -values[i];
}
}
}

[Listing Four]

class Queue {
// The first and last elements in the queue
Element head, tail;

public synchronized void append(Element p) {
if (tail == null)
head = p;
else
tail.next = p;
p.next = null;
tail = p;
notify(); // Let waiters know something arrived
}

public synchronized Element get() {
try {
while(head == null)
wait(); // Wait for an element
} catch (InterruptedException e) {
return null;
}

Element p = head;  // Remember first element
head = head.next;  // Remove it from the queue
if (head == null)  // Check for an empty queue
    tail = null;
return p;

}
}

[Listing Five]

Thread spinner; // the thread doing the processing

public void userHitCancel() {
spinner.suspend(); // whoa!
if (askYesNo("Really Cancel?"))
spinner.stop(); // stop it
else
spinner.resume(); // giddyap!
}

[Listing Six]

class CalcThread extends Thread {
private double Result;

public void run() {
Result = calculate();
}

public double result() {
return Result;
}

public double calculate() {
// ...
}
}

class Join {
public static void main(String[] args) {
CalcThread calc = new CalcThread();
calc.start();
doSomethingElse();
try {
calc.join();
System.out.println("result is "

        + calc.result());
} catch (InterruptedException e) {
    System.out.println(&quot;No answer: interrupted&quot;);
}

}
}

كۆرسەتمە
  1. قىزىق

    بۇ كودنى نىمىگە ئىشلىتىدىغاندۇ؟ بىر ئابزاستىنمۇ جىق تۇرامدۇ نىمە؟ قوللىنىشچانلىق يەرلىرى بارمۇ؟

    جاۋاب