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53 lines
1.2 KiB
53 lines
1.2 KiB
2 years ago
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package std;
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import java.util.ArrayList;
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/**
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*
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* @author (C)Y.D.Zakovryashin, 05.12.2022
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*/
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public class DemoLambda {
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public static void main(String[] args) {
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DemoLambda demo = new DemoLambda();
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ArrayList<Integer> al = demo.init();
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demo.print(al);
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al.removeIf((Integer x) -> x % 2 != 0);
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demo.print(al);
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al.forEach((Integer x) -> {
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System.out.print(x * 2 + ", ");
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});
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System.out.println("");
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}
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private ArrayList<Integer> init() {
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int[] ai = {1, 2, 3, 4, 5, 6, 77, 78};
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ArrayList<Integer> al = new ArrayList<>();
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for (int i : ai) {
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al.add(i);
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}
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return al;
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}
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private void a(int x) {
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// new ? implements DemoFunInterface { ... }
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DemoFunInterface d = x1 -> {
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return String.valueOf(x1);
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};
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}
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private void print(ArrayList<Integer> al) {
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for (Integer i : al) {
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System.out.print(i + ", ");
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}
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System.out.println();
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}
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}
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