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Is there an ease way to create an ArrayList<Boolean> using Java and have them initially all set to false without looping through and assigning each to false?
989
Either use boolean[] instead so that all values defaults to false : boolean[] array = new boolean[size]; Or use Arrays#fill() to fill the entire array with Boolean.
boolean a[]= new boolean[nums. length]; Arrays. fill(a, false); // this will help you fill array of boolean with false.
How could you declare an ArrayList so that it can store true or false values? ArrayList<Boolean> arrList = new ArrayList<>(); What is an array? an indexed container that holds a set of values of a single type.
boolean[] arr = new boolean[10]; This will auto-initialize to false since boolean 's default value is false .
Do like this
List<Boolean> list=new ArrayList<Boolean>(Arrays.asList(new Boolean[10])); Collections.fill(list, Boolean.TRUE); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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