rmg007

public class Main {

  /*
      == , !=, >, >=, <, <=
   */
  public static void main(String[] args) {

    boolean isActive = true;
    System.out.println(isActive);

rmg007

public class Main {

  /*
      letter A
      decimal value 65
      unicode value U+0041
   */
  public static void main(String[] args) {

    char myChar = 'A';

rmg007

public class Main {

  public static void main(String[] args) {
    //myVariable = 45;
    //char myVariable = 'A';

    var myVariable = 45;
    System.out.println(myVariable);

    var myVariable2 = 'A';

rmg007

public class Main {

  /*
      print double quote I love "food"   \"
      print new line    \n
      print indentation   \t
      pint backslash

   */
  public static void main(String[] args) {

rmg007

public class Main {

  /*
      My name is John
      I live in france since 2023
      My salary is 45.55555589
   */
  public static void main(String[] args) {
    String name = "John";
    int year = 2023;

rmg007

import java.util.Scanner;

public class Main {

  /*
     1- Import the Scanner class from java.util package.
     2- Create an object from the class Scanner.
     3- Use methods available in the Scanner object.
     4- Close the scanner object.
   */

rmg007

import java.util.Scanner;

public class Main {

  /*
     next
     nextLine()
     nextInt()
     nextDouble()
   */

rmg007

import java.util.Scanner;

public class Main {

  /*
     Make a program that takes Fahrenheit temperature and converts it to Celsius
     Formula: c = (f - 32) / 1.8;
   */
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);

rmg007

public class Main {
  public static void main(String[] args) {


      System.out.println("byte min : " + Byte.MIN_VALUE + ", byte max : " + Byte.MAX_VALUE );
      System.out.println("short min : " + Short.MIN_VALUE + ", short max : " + Short.MAX_VALUE );
      System.out.println("integer min : " + Integer.MIN_VALUE + ", integer max : " + Integer.MAX_VALUE );
      System.out.println("long min : " + Long.MIN_VALUE + ", long max : " + Long.MAX_VALUE );

      System.out.println("float min : " + Float.MIN_VALUE + ", float max : " + Float.MAX_VALUE );

rmg007

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int grade = in.nextInt();

    if (grade >= 90) {
      System.out.println("A");