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Java/stream

Java Stream 예시 3

by S.T.Lee 2022. 11. 13.
package lec08.fileio04.stream.ex1;

import java.util.Comparator;
import java.util.stream.Stream;

public class StreamMain03 {

	public static void main(String[] args) {
		Stream<String> strStream01 = Stream.of("b", "c", "a");
		strStream01.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> strStream02 = Stream.of("b", "c", "a").sorted();
		strStream02.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> strStream03 = 
				Stream.of("b", "c", "a").sorted((i1, i2) -> i1.compareTo(i2));
		strStream03.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> strStream04 = Stream.of("b", "c", "a").sorted(String::compareTo);
		strStream04.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> reverseStream01 = Stream.of("b", "c", "a").sorted(Comparator.reverseOrder());
		reverseStream01.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> caseStream01 = Stream.of("b", "c", "A", "B", "A");
		caseStream01.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> caseStream02 = Stream.of("b", "c", "A", "B", "A");
		caseStream02.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		System.out.println("===============================");
		
		Stream<String> caseStream03 = Stream.of("b", "c", "A", "B", "A").sorted(String.CASE_INSENSITIVE_ORDER);
		caseStream03.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> caseStream04 = Stream.of("b", "c", "A", "B", "A").sorted(String.CASE_INSENSITIVE_ORDER.reversed());
		caseStream04.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		System.out.println("===============================");
		
		Stream<String> caseStream05 = Stream.of("b", "cc", "A", "A", "B").sorted(Comparator.comparing(String::length));
		caseStream05.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> caseStream06 = Stream.of("b", "cc", "A", "A", "B").sorted(Comparator.comparing(i -> i.length()));
		caseStream06.forEach(i -> System.out.print(i + " "));
		System.out.println();
		
		Stream<String> caseStream07 = Stream.of("b", "cc", "A", "A", "B").sorted(Comparator.comparing(String::length).reversed());
		caseStream07.forEach(i -> System.out.print(i + " "));
		System.out.println();
	}
}

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