Write a Java Program to Check if An Array Contains a Given Value

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Write a Java Program to Check if An Array Contains a Given Value

PROGRAM: Java Program to Check if An Array Contains a Given Value

/*Java Program to Check if An Array Contains a Given Value*/

1: Check if Int Array contains a given value

class Main {
  public static void main(String[] args) {

    int[] num = {1, 2, 3, 4, 5};
    int toFind = 3;
    boolean found = false;

    for (int n : num) {
      if (n == toFind) {
        found = true;
        break;
      }
    }
    
    if(found)
      System.out.println(toFind + " is found.");
    else
      System.out.println(toFind + " is not found.");
  }
}

2: Check if an array contains the given value using Stream

import java.util.stream.IntStream;

class Main {
public static void main(String[] args) {

int[] num = {1, 2, 3, 4, 5};
int toFind = 7;

boolean found = IntStream.of(num).anyMatch(n -> n == toFind);

if(found)
System.out.println(toFind + ” is found.”);
else
System.out.println(toFind + ” is not found.”);

}
}

3: Check if an array contains a given value for non-primitive types

import java.util.Arrays;

class Main {
  public static void main(String[] args){

    String[] strings = {"One","Two","Three","Four","Five"};
    String toFind= "Four";

    boolean found = Arrays.stream(strings).anyMatch(t -> t.equals(toFind));

    if(found)
      System.out.println(toFind + " is found.");
    else
      System.out.println(toFind + " is not found.");
  }
}