0 added
0 removed
Original
2026-01-01
Modified
2026-02-26
1
import java.util.Arrays; import java.util.stream.Collectors; public class App { public static void main(String[] args) { String[][] strArr = {{"1", "2", "3"}, {"4", "5", "6"}, {"7", "8", "9"}}; String str = Arrays.stream(strArr) // стрим массивов String[] .flatMap(Arrays::stream) // стрим строк .collect(Collectors.joining()); System.out.println(str); // => 123456789 int[][] arr = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; int sum = Arrays.stream(arr) // стрим массивов int[] .flatMapToInt(Arrays::stream) // стрим чисел .sum(); System.out.println(sum); // => 45 } }
1
import java.util.Arrays; import java.util.stream.Collectors; public class App { public static void main(String[] args) { String[][] strArr = {{"1", "2", "3"}, {"4", "5", "6"}, {"7", "8", "9"}}; String str = Arrays.stream(strArr) // стрим массивов String[] .flatMap(Arrays::stream) // стрим строк .collect(Collectors.joining()); System.out.println(str); // => 123456789 int[][] arr = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; int sum = Arrays.stream(arr) // стрим массивов int[] .flatMapToInt(Arrays::stream) // стрим чисел .sum(); System.out.println(sum); // => 45 } }