/Java/Java check if element exists in array

Java check if element exists in array

	// Convert to stream and test it
	boolean result = Arrays.stream(alphabet).anyMatch("A"::equals);
	if (result) {
		System.out.println("Hello A");
	}
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Source: mkyong.com

Check if array index exists java

if(index >= myList.size()){
  //index does not exists
}else{
 // index exists
}

Source: stackoverflow.com

Check value is inside array java

public boolean contains(final int[] array, final int key) {     
    return ArrayUtils.contains(array, key);
}
//Note: It's worth noting that ArrayUtils.contains() 
//is part of Apache Commons Lang library. Even though that's a 
// great library, it is probably still not a good idea to 
// add external dependency just to check if array contains an element.

Source: stackoverflow.com

Check if element exists in array java

import java.util.*;
import java.io.*;

public class Array1 {
    public static void main(String[]args)
    {
        Scanner sc=new Scanner(System.in);

        int size=sc.nextInt();
        int []arr=new int[size];
        for(int i=0;i<arr.length;i++)
        {
            arr[i]=sc.nextInt();
        }
        int find=sc.nextInt();
        int count=0;
        for(int i=0;i<arr.length;i++)
        {
            if(arr[i]==find)
                count++;
        }
        if(count>0)
        {
            System.out.println("Element is found");
        }
        else
            System.out.println("Element is not founded");
    }
}

Source: grepper.com

Check value is inside array java

// Better solution
public static boolean contains(final int[] arr, final int key) {
    return Arrays.stream(arr).anyMatch(i -> i == key);
}

Source: stackoverflow.com

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