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ArraysClassDemo.java
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43 lines (30 loc) · 1.16 KB
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package arraydemo;
import java.util.Arrays;
public class ArraysClassDemo {
public static void main(String[] args) {
double[] numbers = {6.0, 4.4, 1.9, 2.9, 3.4, 3.5};
Arrays.sort(numbers);
for (double item : numbers) {
System.out.print(item + " ");
}
System.out.println();
double[] numbers1 = {6.0, 4.4, 1.9, 2.9, 3.4, 3.5};
Arrays.sort(numbers1, 1, 3);
for (double item : numbers1) {
System.out.print(item + " ");
}
System.out.println();
int[] list = {2, 4, 7, 10, 11, 45, 50, 59, 60, 66, 69, 70, 79};
System.out.println("index:" + Arrays.binarySearch(list, 11));
System.out.println("index:" + Arrays.binarySearch(list, 1));
int[] list1 = {2, 4, 7, 10};
int[] list2 = {2, 4, 7, 10, 33, 45, 6};
int[] list3 = {4, 2, 7, 10};
System.out.println(Arrays.equals(list1, list2));
System.out.println(Arrays.equals(list2, list3));
Arrays.fill(list1, 5);
System.out.println(Arrays.toString(list1));
Arrays.fill(list2, 1, 5, 8);
System.out.println(Arrays.toString(list2));
}
}