find first element of list java
final Object firstElement = list.stream()
.findFirst()
.orElse(new Object()) //Give a default value if there are no elements
final Object firstElement = list.stream()
.findFirst()
.orElseThrow(() -> new Exception()) //Throw an exception if there are no elementsjava list get first element
set.iterator().next();java list get first element
!list_or_set.isEmpty()java first index of an arraylist
ArrayList<Type> array = new ArrayList<Type>();
System.out.printLn(array[0]);find first element of list java
final Object firstElement = list.stream()
.findFirst()
.orElse(new Object()) //Give a default value if there are no elements
final Object firstElement = list.stream()
.findFirst()
.orElseThrow(() -> new Exception()) //Throw an exception if there are no elementsjava list get first element
set.iterator().next();java list get first element
!list_or_set.isEmpty()java first index of an arraylist
ArrayList<Type> array = new ArrayList<Type>();
System.out.printLn(array[0]);Copyright © 2021 Codeinu
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