Java random performance 2

Quad-core windows 7

HTML

<script src="https://codehs.com/editor/398065/188165/0/0#docs-operators"></script>

JavaScript

public class MyProgram extends ConsoleProgram
{

	public void run(){
    	String[] starter = {"Pikachu", "Pikachu", "Pikachu", "Pikachu", "Celebi", "Eevee", "Snorlax", "Ditto", "Charizard", "Charmander", "Squirtle", "Bulbasaur"};
    	for(int x = 1; x < 101; x++){    
    	    System.out.println(x);
        	String[] chosen = new String[5];
        	int items = 0;
        	int y = 0;
        	do{
            	String random = starter[new Randomizer().nextInt(starter.length)];
            	if(!inArray(chosen, random)){
                	System.out.print(random + ", ");
                	chosen[items] = random;
                	items++;
                	y++;
            	}
        	} while(y < 5);
   	 
    //	System.out.println();
           	 
       	String[] legendary = {"Mew", "Mew", "Mew", "Mew", "MewTwo", "Articuno", "Lugia", "Regirock", "Kyogre", "Palkia", "Dialga", "Zaptos"};
       	String random2 = (legendary[new Randomizer().nextInt(legendary.length)]);
       	System.out.println("Legendary: " + random2);
      // 	System.out.println(random2);
      	 
       	System.out.println();
       	System.out.println();
   	}
  	 
	}
    
	public boolean inArray(String[] arr, String s){
        	boolean inArray = false;
        	for(int i = 0; i < arr.length; i++){
            	if(arr[i] == s){
                	inArray = true;
            	}
        	}     	 
        	return inArray;
	}
}