public class Program
{
int i;
int j;
int k;
Program(){
j=2;
}
Program(int m,int n){
super();
i=m;
k=n;
}
Program(int x){
super();
j=x;
}
public static void main(String[] args) {
Program p=new Program(4);
System.out.println(p.i+" "+p.j+" "+p.k);
}
}

What is a CV? CV vs Résumé + Curriculum Vitae Meaning
https://www.freecodecamp.org/news/what-is-a-cv-and-how-is-it-different-from-a-resume/

public class Main
{
public static void main(String[] args) {
int num1,num2;
try{
num1=0;
num2=62/num1;
System.out.println("Try block message");
System.exit(0);
}catch(ArithmeticException e){
System.out.println("Error: Don't divide a Number of num1");
System.exit(0);
}
finally{
System.out.println("Give another number of num1");
}
}
}

public class Main
{
static final Integer i1=1;
final Integer i2=2;
Integer i3=3;
public static void main(String[] args) {
final Integer i4=4;
Integer i5=5;
class Inner{
final Integer i6=6;
Integer i7=7;
Inner(){
System.out.println(i6+i7);
}
}
}
}

public class Main
{
public static void main(String[] args) {
String s1="JAVA";
StringBuilder s2=new StringBuilder(s1);
System.out.println(s1.compareTo(s2)==s2.compareTo(s1));
}
}

public class Main
{
public static void main(String[] args) {
int i=0;
addTwo(i++);
System.out.println(i);
}
static void addTwo(int i){
i+=2;
}
}

public enum TrafficLight
{
RED("Stop"),YELLOW("Caution"),GREEN("Go");
private String action;
TrafficLight(String action){
this.action=action;
}
public static void main(String[] args) {
TrafficLight green=new TrafficLight("Go");
System.out.println(GREEN.equals("green"));
}
}

import java.util.*;
public class Main
{
public static void main(String[] args) {
Collection<String> words=new ArrayList();
words.add("Don't");
words.add("change");
words.add("me!");
System.out.println("Before : "+words);
for(String word:words){
System.out.print(word.toUpperCase()+"_");
}
System.out.println();
System.out.println("After : "+words);
}
}