ronsc

/* ------ ใน package .domain ------ */
@Entity				//@Entity ทำให้ public class Test {} เป็น Entity		 
public class Test {
	@Id 			//กำหนดให้ Long id เป็น Primary Key
	@GeneratedValue //กำหนดให้ id รันเลขไปอัตโนมัติ
	private Long id;
	
	@Column 		//สร้าง attribute ขื่อ name ชนิด String
	private String name;

ronsc

import java.util.*;

public class No3 {
    public static void main(String[] args){
        ArrayList ar = new ArrayList();
        ar.add("hello");
        ar.add(new Integer(232));
        ar.add(new Boolean("true"));
        ar.add(48);
        ar.add(new Integer("8889888"));

ronsc

public class No2 {
    public static void main(String[] args){
        int[] num = {2, 4, 9, 81, 33, 48};
        for(int d : num){
            try {
                process(d, num);
                sumDigitFactorial(d);
            } catch (SquareException ex) {
                System.out.println(ex.getMessage());
            }

ronsc

public class Geek{
    public void process(String[] s, int n){
        int[] num = new int[s.length];
        int index = 0;
        for(String d : s){
            for(int i = 0; i < d.length(); i++){
                char c = d.charAt(i);
                if(Character.isDigit(c)){
                    num[index] = num[index]*10 + (c - 48);
                }

ronsc

import java.util.*;

public class Ex1 {
    public static void main(String[] args){
        String[] s = new String[] {"A2B3E4", "FF23", "AA4B2C3", "D14", "5AC"};
        ArrayList ar = new ArrayList();
        for(String d : s){
            int sum = 0;
            for(int i = 0; i < d.length(); i++){
                char c = d.charAt(i);

ronsc

import java.util.*;

public class Ex2 {
    public static void main(String[] args){
        String[] s = new String[] {"A23", "B343", "2C3", "X12", "MN2CD3Y"};
        TreeSet t = new TreeSet();
        
        for(String d : s){
            int val = 0;
            for(int i = 0; i < d.length(); i++){

ronsc

import java.util.*;

public class Ex4 {
    public static void main(String[] args){
        ArrayList a = new ArrayList();
        a.add(3);
        a.add(1.5);
        a.add(new Student("John"));
        a.add("Somsak");
        a.add(new Student("Jack"));

ronsc

import java.util.*;

public class Ex3 {
    public static void main(String[] args){
        String[] s = new String[] {"A2B3E4", "FF23", "AA1B2C3", "D14", "5AC"};
        HashMap hm = new HashMap();
        int index = 0;
        int[] key = new int[s.length];
        String[] value = new String[s.length];
        

ronsc

public class Sample2 {
    public static void main(String[] args){
        Student s = new Student();
        s.doEven("235878021");
        s.doEven("4422136812");
        s.sum("12345");
        s.sum("9876543210");
    }
}

ronsc

public class AException extends Exception{
    public AException(String msg){
        super(msg);
    }
}