public class Main1 {
public static void main(String [] args) {
Thread thread = new Thread(new BlockingTask());
thread.start();
}
private static class BlockingTask implements Runnable {
@Override
public void run() {
//do things
try {
Thread.sleep(500000);
} catch (InterruptedException e) {
System.out.println("Existing blocking thread");
}
}
}
}
-----------------------------------
import java.math.BigInteger;
/**
* Thread Termination & Daemon Threads
*
*/
public class Main2 {
public static void main(String[] args) {
Thread thread = new Thread(new LongComputationTask(new BigInteger("200000"), new BigInteger("100000000")));
thread.start();
thread.interrupt();
}
private static class LongComputationTask implements Runnable {
private BigInteger base;
private BigInteger power;
public LongComputationTask(BigInteger base, BigInteger power) {
this.base = base;
this.power = power;
}
@Override
public void run() {
System.out.println(base + "^" + power + " = " + pow(base, power));
}
private BigInteger pow(BigInteger base, BigInteger power) {
BigInteger result = BigInteger.ONE;
for (BigInteger i = BigInteger.ZERO; i.compareTo(power) != 0; i = i.add(BigInteger.ONE)) {
// without this interruption, this won't be interrupt
if (Thread.currentThread().isInterrupted()) {
System.out.println("Prematurely interrupted computation");
return BigInteger.ZERO;
}
result = result.multiply(base);
}
return result;
}
}
}
------------------------------------------
import java.math.BigInteger;
/**
* Thread Termination & Daemon Threads
*
*/
public class Main3 {
public static void main(String[] args) throws InterruptedException {
Thread thread = new Thread(new LongComputationTask(new BigInteger("200000"), new BigInteger("100000000")));
// make thread deamon, run in background
thread.setDaemon(true);
thread.start();
Thread.sleep(100);
thread.interrupt();
}
private static class LongComputationTask implements Runnable {
private BigInteger base;
private BigInteger power;
public LongComputationTask(BigInteger base, BigInteger power) {
this.base = base;
this.power = power;
}
@Override
public void run() {
System.out.println(base + "^" + power + " = " + pow(base, power));
}
private BigInteger pow(BigInteger base, BigInteger power) {
BigInteger result = BigInteger.ONE;
for (BigInteger i = BigInteger.ZERO; i.compareTo(power) != 0; i = i.add(BigInteger.ONE)) {
result = result.multiply(base);
}
return result;
}
}
}
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