How to Set to Array in Java?

Try your approach on {IDE} first, before moving on to the solution.

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Threee different methos of setting array in Java are:

1. Create an empty array then traverse the given set and one by one add elements to the array.

E.g:

// Conversion of Set to array using simple traversal
import java.util.*;
class Test
{ public static void main(String[] args)
{ // hash set of strings
Set s = new HashSet();
s.add("Goodluck");
s.add("for");
int n = s.size();
String arr[] = new String[n];
int i = 0;
for (String x : s)
arr[i++] = x;
for (String x : arr)
System.out.println(x);
}
}

2.Method 2 is (Using toArray())

import java.util.*;
class Test {
public static void main(String[] args)
{
Sets.add("Goodluck");
s.add("for");
int n = s.size();
String arr[] = new String[n];
arr = s.toArray(arr);
for (String x : arr)
System.out.println(x);
}
}

3. 3rd Method is Using stream in Java to convert given set to steam, then stream to array.

import java.util.*;
class Test {
public static void main(String[] args)
{
Sets.add("Goodluck");
s.add("for");
int n = s.size();
String[] arr = s.stream().toArray(String[] ::new);
for (String x : arr)
System.out.println(x);
}
}

Run these set of code on IDE to check the output .

Set Array

Java

Array in Java

Ayesha

Tech writer at newsandstory