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package unit.classes;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.OptionalInt;
import java.util.function.IntBinaryOperator;
import java.util.function.Supplier;
public class TestClassLambda {
public int field = 0;
public void testLambda() {
List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7);
int b = (int)Math.random();
list.forEach(n -> {int a = 2 * n; System.out.println(a + b + field);});
}
public void testLambda1() {
int a = (int)Math.random();
Runnable r = () -> { System.out.println("hello" + a); };
Runnable r1 = () -> { System.out.println("hello1" + a); };
}
public void testLambda2() {
reduce((left, right) -> Math.max(left, right));
}
public void testLambda3() { // IDEA-127301
reduce(Math::max);
}
public void testLambda4() {
reduce(TestClassLambda::localMax);
}
public void testLambda5() {
String x = "abcd";
function(x::toString);
}
public void testLambda6() {
List<String> list = new ArrayList<String>();
int bottom = list.size() * 2;
int top = list.size() * 5;
list.removeIf( s -> (bottom >= s.length() && s.length() <= top) );
}
public static OptionalInt reduce(IntBinaryOperator op) {
return null;
}
public static String function(Supplier<String> supplier) {
return supplier.get();
}
public static int localMax(int first, int second) {
return 0;
}
}
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