public static void main(String... args) {
int c = 2;
IntBinaryOperator i = (a, b) -> a + c;
out.println(i.applyAsInt(1, 10));
c = 3;
}
public static void main(String[] args) {
String s = "abc";
IntSupplier supplier = s::length;
System.out.println(supplier.getAsInt());
String s2 = "ぶーさん";
IntSupplier supplier2 = () -> s2.length();
System.out.println(supplier2.getAsInt());
String s3 = "ブタ過ぎる";
IntSupplier supplier3 =
new IntSupplier() {
@Override
public int getAsInt() {
return s3.length();
}
};
System.out.println(supplier3.getAsInt());
// ---------------------------------------------------------
Consumer<String> c = System.out::println;
c.accept("pig!!");
Consumer<String> c2 = (String cs) -> System.out.println(cs);
c2.accept("buta");
Consumer<String> c3 =
new Consumer<String>() {
@Override
public void accept(String t) {
System.out.println(t);
}
};
c3.accept("ぶうさーん！");
// ---------------------------------------------------------
IntBinaryOperator op = Integer::sum;
System.out.println(op.applyAsInt(100, 25));
IntBinaryOperator op2 = (int n1, int n2) -> Integer.sum(n1, n2);
System.out.println(op2.applyAsInt(70, 50));
}
@Override
public int reduce(int identity, IntBinaryOperator op) {
return performOperation(
TerminalFunctions.reduceFunction(identity, op),
true,
(i1, i2) -> op.applyAsInt(i1, i2),
null);
}
@Override
public OptionalInt reduce(IntBinaryOperator op) {
Integer result =
performOperation(
TerminalFunctions.reduceFunction(op),
true,
(i1, i2) -> {
if (i1 != null) {
if (i2 != null) {
return op.applyAsInt(i1, i2);
}
return i1;
}
return i2;
},
null);
if (result == null) {
return OptionalInt.empty();
} else {
return OptionalInt.of(result);
}
}
