Java – removes duplicate public output from both lists
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Java
I have two arrays I want the output to be a common number between two lists, but the following code will output duplicate common numbers
double[] arr1 = {100.00,100.00,17246.40,2568.00,0.20,9845.00,5768.18,30.00,63.68,83.56,444.39,144.20,2889.00}; double[] arr2 = {2000.90,508.07,5899.38,2889.00,3000.00,60.00,3135.00,28329.91,9845.00}; for(int i=0; i<arr1.length; i++){ for(int j=0; j<arr2.length; j++){ if(arr1[i] == arr2[j]){ System.out.println(arr1[i]);
Can anyone help output only public numbers between two arrays and delete duplicate numbers?
thank you.
Solution
To create a collection, simply add common values
double[] arr1 = {100.00,2889.00}; double[] arr2 = {2000.90,9845.00}; Set<Double> set = new HashSet<Double>(); for(int i=0;i<arr1.length;i++){ for(int j=0;j<arr2.length;j++){ if(arr1[i]==arr2[j]) set.add(arr1[i]); } } System.out.println(Arrays.toString(set.toArray()));
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