io.github.hylexus.jt.utils.Jdk8Adapter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jt-core Show documentation

jt-core

The newest version!

package io.github.hylexus.jt.utils;

import java.util.*;
import java.util.stream.Collectors;

/**
 * @Author dujunliang
 * @Date 2024/7/25 16:14
 * @Description
 */
public class Jdk8Adapter {

    public static void mark(String message) {

    }

    public static String stringRepeat(String str, int count) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < count; i++) {
            sb.append(str);
        }
        return sb.toString();
    }

    public static  boolean optionalIsEmpty(Optional optional) {
        return !optional.isPresent();
    }

    public static NoSuchElementException optionalOrElseThrowEx() {
        return new NoSuchElementException("No value present");
    }

    @SafeVarargs
    public static  Set setOf(E... e) {
        return Arrays.stream(e).collect(Collectors.toSet());
    }

    @SafeVarargs
    public static  List listOf(E... e) {
        return Arrays.stream(e).collect(Collectors.toList());
    }

}