java find element in array

1package com.mkyong.core;
2
3import java.util.Arrays;
4import java.util.List;
5
6public class StringArrayExample1 {
7
8    public static void main(String[] args) {
9
10        String[] alphabet = new String[]{"A", "B", "C"};
11
12        // Convert String Array to List
13        List<String> list = Arrays.asList(alphabet);
14        
15        if(list.contains("A")){
16            System.out.println("Hello A");
17        }
18
19    }
20
21}
22Copy

1import java.util.Scanner;
2public class Search_Element
3{
4    public static void main(String[] args) 
5    {
6        int n, x, flag = 0, i = 0;
7        Scanner s = new Scanner(System.in);
8        System.out.print("Enter no. of elements you want in array:");
9        n = s.nextInt();
10        int a[] = new int[n];
11        System.out.println("Enter all the elements:");
12        for(i = 0; i < n; i++)
13        {
14            a[i] = s.nextInt();
15        }
16        System.out.print("Enter the element you want to find:");
17        x = s.nextInt();
18        for(i = 0; i < n; i++)
19        {
20            if(a[i] == x)
21            {
22                flag = 1;
23                break;
24            }
25            else
26            {
27                flag = 0;
28            }
29        }
30        if(flag == 1)
31        {
32            System.out.println("Element found at position:"+(i + 1));
33        }
34        else
35        {
36            System.out.println("Element not found");
37        }
38    }
39}

1array[array.indexOf(element)]

1	// Convert to stream and test it
2	boolean result = Arrays.stream(alphabet).anyMatch("A"::equals);
3	if (result) {
4		System.out.println("Hello A");
5	}
6Copy

1public class Contains {
2
3    public static void main(String[] args) {
4        int[] num = {1, 2, 3, 4, 5};
5        int toFind = 3;
6        boolean found = false;
7
8        for (int n : num) {
9            if (n == toFind) {
10                found = true;
11                break;
12            }
13        }
14
15        if(found)
16            System.out.println(toFind + " is found.");
17        else
18            System.out.println(toFind + " is not found.");
19    }
20}