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Java Print ArrayList

Submitted by Sameera on Fri, 11/12/2010 - 19:50

This Java Print ArrayList example shows how to print values of Java ArrayList.

import java.util.ArrayList;
 
//Java Print ArrayList, Java Display ArrayList
 
/*
 * This Java Print ArrayList example shows how to print values of
 * Java ArrayList.
 */
 
public class JavaPrintArrayList {
    
    public static void main(String args){
       
        ArrayList<String> alistNumbers = new ArrayList<String>();
        alistNumbers.add("1");
        alistNumbers.add("2");
        alistNumbers.add("3");
       
        //pint elements of ArrayList using println method
        System.out.println(alistNumbers);
       
        //Or use for loop to display Java ArrayList elements
       
        for(int i=0; i< alistNumbers.size(); i++){
            System.out.println(alistNumbers.get(i));
        }
       
        /*
         * However, this will not display proper output if the objects added
         * to the ArrayList does not have toString method implemented.
         *
         * For example, object of Class X is added to the ArrayList and Class X
         * does not have toString method overridden.
         */
    }
}
 
/*
Output of above given Java Print ArrayList example would be,
[1, 2, 3]
1
2
3
*/