Java ArrayList isEmpty() Method Example

Thejava.util.ArrayList.isEmpty() method returns true if this list contains no elements.

Java ArrayList isEmpty() Method Example

The following example shows the usage ofjava.util.ArrayList.isEmpty() −

import java.util.ArrayList;publicclassArrayListDemo{publicstaticvoid main(String[] args){// create an empty array deque with an initial capacityArrayList<Integer> arrlist=newArrayList<>(5);// use add() method to add elements in the deque      arrlist.add(25);      arrlist.add(10);      arrlist.add(20);      arrlist.add(35);boolean retval= arrlist.isEmpty();if(retval==true){System.out.println("list is empty");}else{System.out.println("list is not empty");}// printing all the elements available in listfor(Integer number: arrlist){System.out.println("Number = "+ number);}}}
Let us compile and run the above program, this will produce the following result −
list is not emptyNumber = 25Number = 10Number = 20Number = 35

Reference

Java ArrayList Source Code Examples


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