how to get a list length in java
import java.util.ArrayList;
import java.util.List;
public class Demo {
public static void main(String[] args) {
List aList = new ArrayList();
aList.add("Apple");
aList.add("Mango");
aList.add("Guava");
aList.add("Orange");
aList.add("Peach");
System.out.println("The size of the ArrayList is: " + aList.size());
}
}ArrayList size() method in java
import java.util.ArrayList;
public class ArrayListSizeMethodExample
{
public static void main(String[] args)
{
ArrayList<String> al = new ArrayList<String>();
int s = al.size();
System.out.println("size of ArrayList: " + s);
al.add("red");
al.add("blue");
al.add("green");
s = al.size();
System.out.println("size of ArrayList after adding elements: " + s);
al.clear();
s = al.size();
System.out.println("size of ArrayList after clearing elements: " + s);
}
}Copyright © 2021 Codeinu
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