public class lab3 {

    public static void main(String[] args) {

    	int[] array;
        array = new int [4];

		for(int x = 0; x < 4; x++)
	      {
			array[x]=(int)(1+Math.random()*20);
	      } //--> end of for loop:  for(int x = 0; x < 4; x++)

		for(int a = 0; a < array.length; a++)
		{
			System.out.println(array[a]);
		} //--> end of print for loop: for(int a = 0; a < array.length; a++)


        System.out.println("Duplicates in the array? True or False?");

        System.out.println(valueDuplicated(array));
    } //--> end of main method
    public static boolean valueDuplicated(int [] dupArray)
    {
        for(int i = 0; i < dupArray.length; i++){
        for(int x = i+1; x < dupArray.length; x++){
            if(dupArray[i] == dupArray[x]){
                return true;
            } //--> end of if statement for duplicate number check

         } //--> end of second for loop: for(int x = i+1; x < dupArray.length; x++)
        } // --> end of the first for loop: for(int i = 0; i < dupArray.length; i++)
        return false;
    } //--> end of duplicate method
} //--> end of class