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ID: java-best-practices/arrays-aslist
Language: Java
Severity: Warning
Category: Performance
Using Arrays.asList
is much faster and cleaner than creating an array by iterating over the values.
class Main {
public List<Integer> getListOfSomething() {
List<Integer> myList = new ArrayList<>();
Integer[] myArray = getArrayFromCall();
foo();
for (int i = 0; i < myArray.length; i++) {
myList.add(myArray[i]);
}
return myList;
}
}
class Main {
public List<Integer> getListOfSomething() {
Integer[] myArray = getArrayFromCall();
List<Integer> myList = new ArrayList<>();
foo();
for (int i = 0; i < myArray.length; i++) {
myList.add(myArray[i]);
}
return myList;
}
}
class Main {
public List<Integer> getListOfSomething() {
Integer[] myArray = getArrayFromCall();
return Arrays.asList(myArray);
}
}
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