Java Examples - Finding and Sorting an array

Java Examples

The following example demonstrates how to use sort () and binarySearch () method to sort the array and find the elements in the array, we define printArray () output:

/*
 author by w3cschool.cc
 文件名：Main.java
 */

import java.util.Arrays;

public class MainClass {
   	public static void main(String args[]) throws Exception {
      	int array[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 };
	    Arrays.sort(array);
	   	printArray("Sorted array", array);
	    int index = Arrays.binarySearch(array, 2);
	    System.out.println("Found 2 @ " + index);
   }
   private static void printArray(String message, int array[]) {
      	System.out.println(message
      	+ ": [length: " + array.length + "]");
      	for (int i = 0; i < array.length; i++) {
        	if(i != 0){
            	System.out.print(", ");
			}
			System.out.print(array[i]);                     
		}
		System.out.println();
	}
}

The above code is run output is:

Sorted array: [length: 10]
-9, -7, -3, -2, 0, 2, 4, 5, 6, 8
Found 2 @ 5

Java Examples