PHMga 'tol, very basic data/string manipulation.
Paano magbasa ng data (String) and manipulate.
I will slowly illustrate how to read and manipulate String....and then create OBJECT out of it....to be used for database.
For now, here's a very basic code na kaya nyong pag-aralan.
SAVE THIS AS MainApp.java
Paano magbasa ng data (String) and manipulate.
I will slowly illustrate how to read and manipulate String....and then create OBJECT out of it....to be used for database.
For now, here's a very basic code na kaya nyong pag-aralan.
SAVE THIS AS MainApp.java
Code:
/**
* Super basic pero powerful itong concept na ito
* Laging ginagamit ang procedure na ito sa paggawa ng application
* Lalo na sa database or kaya naman sa data mining
* This is purely array muna. Hindi tatayo gagamit muna ng objects
*
* Author: Codyscott at phcorner.org
*
*/
public class MainApp {
static String longList = "Antonio|Dimaculangan|BS Nursing|3rd year|University of the Philippines##Jose|Hipolito|BS Civil Engineering|2nd Year|Adamson University##Maria|Capra|BS Accountancy|5th Year|University of Santo Tomas##Leo|Ramirez|Hotel and Restaurant Management|1st Year|STI College##"Alan|Montelibano|Computer Science|4th Year|AMA";
public static void main(String[] args) {
//STEP 0: display lang natin yung longList as is
System.out.println(longList + "\n\n");
//STEP 1: recognize the dividers
// "##" divides PER record (o kaya per student)
// "|" divides PER field (o kaya student data)
//STEP 2: Let's split between ## to make records (or in database, rows)
String[] studentRecords = longList.split("##");
//STEP 3: Let's just verify
//3a - bilangan kung ilang records
System.out.println("TOTAL RECORDS: " + studentRecords.length + "\n\n");
//3b - display natin isa isa yung records
int count = 0;
for(String aRecord : studentRecords) {
count++;
System.out.println(count + " : " + aRecord);
}
//********ok pagandahin pa natin ng konti
//STEP 4: Let's split PER RECORD into fields
//Let's loop inside the studentRecords
int counter=0;
for(String aRecord : studentRecords) {
//split between "|"
//take note: you need to escape using "\\|"
String[] oneStudentArray = aRecord.split("\\|");
System.out.println("\n" + ++counter);
//step 4a: kada isang record, i-display natin
for(String aField : oneStudentArray) {
System.out.println(aField);
}
}
/*at this point, we could have created a STUDENT OBJECT with this data
and store it direct to a database.
But for now, just know the basics
*/
}
}