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Програмування мовою Java
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(Java)
public abstract class SomeClass implements Runnable {
private Object lock = new Object ();
public void lock () {
synchronized (lock) {
try {
lock.wait ();
System.out.print ( "1");
} Catch (InterruptedException e) { }
}
}
public void unlock () {
synchronized (lock) {
lock.notify ();
System.out.print ( "2");
}
}
public static void main (String s []) {
new Thread (new SomeClass () {
public void run () {
lock ();
}
}). Start ();
new Thread (new SomeClass () {
public void run () {
unlock ();
}
}). Start ();
}
}
(Java)
(Java)
try {
throw new ArithmeticException ();
System.out.print ( "2");
}
catch (ArithmeticException e) {
System.out.print ( "1");
}
finally {
System.out.print ( "0");
}
(Java)
(Java)
class Square {
int s (int a, int b) {
System.out.print (a * b);
return a * b;
}
void s (int r) {
System.out.print (3.14 * r * r);
}
}
public class MyClass {
public static void main (String args []) {
Square x = new Square ();
xs (3, 12);
xs (1);
}
}
(Java)
1 ...
2 class A {
3 int a, b;
4 void sum () {
5 System.out.print (a + b);
6}
7}
8 class B extends A {
9 int c, d;
10 B (int b1, int b2) {
11 super ();
12 c = b1;
13 d = b2;
14}
15 void sum () {
16 System.out.print (c + d);
17}
18}