Kode Java

 
package org.kodejava.example.commons.lang;
 
import org.apache.commons.lang.ArrayUtils;
 
public class ArrayUtilsIndexOf {
    public static void main(String[] args) {
        String[] colours = {"Red", "Orange", "Yellow", "Green", "Blue"
                , "Violet", "Orange", "Blue"};
        
        /*
         * Does colours array contains the Blue colour? 
         */
        boolean contains = ArrayUtils.contains(colours, "Blue");        
        System.out.println("Contains Blue? " + contains);
        
        /*
         * Can you tell me the index of each colour defined bellow? 
         */
        int indexOfYellow = ArrayUtils.indexOf(colours, "Yellow");
        System.out.println("indexOfYellow = " + indexOfYellow);
        int indexOfOrange = ArrayUtils.indexOf(colours, "Orange");
        System.out.println("indexOfOrange = " + indexOfOrange);
        int lastIndexOfOrange = ArrayUtils.lastIndexOf(colours, "Orange");
        System.out.println("lastIndexOfOrange = " + lastIndexOfOrange);
    }
}
 
 

• How do I convert String to Date object?
• How do I convert array to collection?
• How do I get day, month, year value from the current date?
• How do I read a text file?
• How do I format a number?
• How do I get the current month name?
• How do I use StringTokenizer to split a string?
• How do I convert collection into array?
• How do I do a date add or substract?
• How do I write string data to file?

• How do I reverse a string?
• What need to be prepared for learning Java Programming?
• How do I implement a Singleton pattern?
• How do I split a string?
• How do I read text file content line by line using commons-io?
• How do I create a zip file?
• How do I calculate days difference between two dates?
• Hello World example in Java
• How do I create a connection to database?
• How do I create a beep sound?

• Java Programming Keywords Summary
• How do I read an XML document using JDOM?
• How do I sort items of an ArrayList?
• How do I sort array values in case insensitive order?
• How do I sort array values in descending order?
• How do I limit the Hibernate query result?
• How do I store properties as XML file?
• How do I load properties from XML file?
• How do I convert InputStream to String?
• How do I convert string into InputStream?

• How do I determine bean's property type?
• How do I read mapped bean's property value?
• How do I read indexed bean's property value?
• How do I read bean's nested property value?
• How do I read bean's property value?
• How do I find text between two strings?
• How do I check for an empty string?
• How do I get the nearest hour, minute, second of a date?
• How do I format date and time using DateFormatUtils class?
• How do I find items in an array?