import java.util.function.Consumer;

public class Task230625 {
    public static void main(String[] args) {
        Consumer<String> consumer1 = s -> System.out.print(s.toUpperCase());
        Consumer<String> consumer2 = s -> System.out.print("|" + s + "|");
        
        consumer1.andThen(consumer2).accept("test");
    }
}

public class Task240625 {
    public static void main(String[] args) {
        String s = null;
        s = s + "Java";
        System.out.println(s);
    }
}

import java.util.function.Consumer;

public class Task250625 {
    public static void main(String[] args) {
        Consumer<String> c1 = s -> System.out.print("A" + s);
        Consumer<String> c2 = s -> System.out.print("B" + s);
        
        c1.andThen(c2).accept("1");
        c2.andThen(c1).accept("2");
    }
}

public class Task260625 {
    public static void main(String[] args) {
        Integer a = 100;
        Integer b = 100;
        Integer c = 200;
        Integer d = 200;
        
        System.out.println((a == b) + " " + (c == d));
    }
}

import java.util.function.Predicate;

public class Task270625 {
    public static void main(String[] args) {
        Predicate<String> p1 = s -> s.length() > 5;
        Predicate<String> p2 = s -> s.startsWith("J");
        
        System.out.println(p1.or(p2).test("Java"));
    }
}

class A300625 {
    { System.out.print("1"); }
    public A300625() { System.out.print("2"); }
}

class B300625 extends A300625 {
    { System.out.print("3"); }
    public B300625() { System.out.print("4"); }
}

public class Task300625 {
    public static void main(String[] args) {
        new B300625();
    }
}

public class Task010725 {
    public static void main(String[] args) {
        final int a = 10;
        final int b = 20;
        byte c = a + b;
        System.out.println(c);
    }
}

public class Task020725 {
    
    static void modify(int x) {
        x = x + 10;
    }
    
    public static void main(String[] args) {
        int num = 5;
        modify(num);
        System.out.println(num);
    }
}

public class Task030725 {
    private static int counter = 0;

    public static void main(String[] args) throws InterruptedException {
        Runnable task = () -> {
            for (int i = 0; i < 1_000_000; i++) {
                counter++;
            }
        };

        Thread t1 = new Thread(task);
        Thread t2 = new Thread(task);

        t1.start();
        t2.start();

        t1.join();
        t2.join();

        System.out.println(counter);
    }
}

class Parent040725 {
    private void print() {
        System.out.println("Parent");
    }
}

class Child040725 extends Parent040725 {
    public void print() {
        System.out.println("Child");
    }
}

public class Task040725 {
    public static void main(String[] args) {
        Parent040725 obj = new Child040725();
        obj.print();
    }
}