import javax.swing.*;
import java.awt.*;
public class CplusPlus extends java.applet.Applet {
String statement = "a single set of commands";
String comment = "a line or portion of a line that is ignored by the C++ compiler";
String declaration = " a statement that defines a variable";
String variable = " a holding place in the computer's memory" +
" to store a value of some type";
String expression = " a command that has a value";
String operator = " a command that generates a value";
String vocabulary = "a statement is " + statement + "\na comment is " + comment +
"\na declaration is " + declaration + "\na variable is " + variable + "\nan expression is " +
expression + "an operator is " + operator;
TextArea letter;
public void init(){
String chapters = JOptionPane.showInputDialog("chapter1\n" + "chapter2\n"
+ "chapter3\n" + "chapter4\n");
int choice = Integer.parseInt(chapters);
switch(choice){
case 1:
String statement = "a single set of commands";
String comment = "a line or portion of a line that is ignored by the C++ compiler";
String declaration = " a statement that defines a variable";
String variable = " a holding place in the computer's memory" +
" to store a value of some type";
String expression = " a command that has a value";
String operator = " a command that generates a value";
//TextArea initializing
String letter = "Learn this mom. I made this for you! Study well because a test will follow. " + "\n\n\na statement is " +
statement + "\na comment is " + comment + "\na declaration is " + declaration +
"\na variable is " + variable + "\nan expression is " + expression + "\nan operator is " + operator + "\n\n\nan " +
"expression example is int x = 3;" + "\na declaration example is JTextArea outputArea; " + "\na comment example is // initializing" +
"\na variable example is output" + "\nanother variable example is x " + "\na statement example is System.out.println();" +
"\nan operator example is = " + "\nanother operator example is - " + "\nanother operator example is + ";
;
TextArea let;
let = new TextArea(letter,40,90);
add(let);
JOptionPane.showMessageDialog(null,let);
//Quiz
JOptionPane.showMessageDialog(null,"what is a statement");
String answer = JOptionPane.showInputDialog("A - " + statement + "\n" +
"B - " + comment + "\n" + "C - " +
declaration + "\n" + "D - " + variable + "\n" + "E - " + expression
+ "\n" + "F - " + operator);
if(answer.equals("A"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
//introducing the new question
JOptionPane.showMessageDialog(null,"what is a comment");
String answer2 = JOptionPane.showInputDialog("A - " + statement + "\n" +
"B - " + comment + "\n" + "C - " +
declaration + "\n" + "D - " + variable + "\n" + "E - " + expression
+ "\n" + "F - " + operator);
if(answer2.equals("B"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
//introducing the new question
JOptionPane.showMessageDialog(null,"what is a variable");
String answer3 = JOptionPane.showInputDialog("A - " + statement + "\n" +
"B - " + comment + "\n" + "C - " +
declaration + "\n" + "D - " + variable + "\n" + "E - " + expression
+ "\n" + "F - " + operator);
if(answer3.equals("D"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
//introducing the new question
JOptionPane.showMessageDialog(null,"what is a declaration");
String answer4 = JOptionPane.showInputDialog("A - " + statement + "\n" +
"B - " + comment + "\n" + "C - " +
declaration + "\n" + "D - " + variable + "\n" + "E - " + expression
+ "\n" + "F - " + operator);
if(answer4.equals("C"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
//introducing the new question
JOptionPane.showMessageDialog(null,"what is an operator");
String answer5 = JOptionPane.showInputDialog("A - " + statement + "\n" +
"B - " + comment + "\n" + "C - " +
declaration + "\n" + "D - " + variable + "\n" + "E - " + expression
+ "\n" + "F - " + operator);
if(answer5.equals("F"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
//introducing the new question
JOptionPane.showMessageDialog(null,"what is an expression");
String answer6 = JOptionPane.showInputDialog("A - " + statement + "\n" +
"B - " + comment + "\n" + "C - " +
declaration + "\n" + "D - " + variable + "\n" + "E - " + expression
+ "\n" + "F - " + operator);
if(answer6.equals("E"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
// example questions
JOptionPane.showMessageDialog(null,"what is an example of a statement?");
String example = ("int x = 3;");
String example2 = ("JTextArea outputArea;");
String example3 = (" // initializing");
String example4 = ("output");
String example5 = ("System.out.println();");
String option = JOptionPane.showInputDialog("A - " + example + "\n" + "B - " + example2 +
"\n" + "C - " + example3 + "\n" + "D - " + example4 + "\n" + "E - " + example5 + "\n");
if(option.equals("E"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
// examples
JOptionPane.showMessageDialog(null,"what is an example of a comment?");
String option2 = JOptionPane.showInputDialog("A - " + example5 + "\n" + "B - " + example2 +
"\n" + "C - " + example3 + "\n" + "D - " + example4 + "\n" + "E - " + example);
if(option2.equals("C"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
// examples
JOptionPane.showMessageDialog(null,"what is an example of a declaration?");
String option3 = JOptionPane.showInputDialog("A - " + example5 + "\n" + "B - " + example2 +
"\n" + "C - " + example3 + "\n" + "D - " + example4 + "\n" + "E - " + example);
if(option3.equals("B"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
// examples
JOptionPane.showMessageDialog(null,"what is an example of a variable?");
String option4 = JOptionPane.showInputDialog("A - " + example5 + "\n" + "B - " + example2 +
"\n" + "C - " + example3 + "\n" + "D - " + example4 + "\n" + "E - " + example);
if(option4.equals("D"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
// examples
JOptionPane.showMessageDialog(null,"what is an example of an expression?");
String option5 = JOptionPane.showInputDialog("A - " + example5 + "\n" + "B - " + example2 +
"\n" + "C - " + example3 + "\n" + "D - " + example4 + "\n" + "E - " + example);
if(option5.equals("E"))
JOptionPane.showMessageDialog(null,"correct");
else
JOptionPane.showMessageDialog(null,"incorrect");
JOptionPane.showMessageDialog(null,"Congratulations! you made it past chapter 1");
break;
case 2:
String frame = "";
TextArea lt;
Button lesson1 = new Button("lesson 1");
Button exit = new Button("exit");
Button lesson2 = new Button("lesson 2");
Button lesson3 = new Button("lesson 3");
Button lesson4 = new Button("lesson 4");
Button lesson5 = new Button("lesson 5");
Button lesson6 = new Button("lesson 6");
Button lesson7 = new Button("lesson 7");
Button lesson8 = new Button("lesson 8");
Button lesson9 = new Button ("lesson 9");
Button lesson10 = new Button("lesson 10");
String output =("memorize this frame as your lesson 1, " +
"which is the start of all c++ programs") +
("\n\n\n #include <iostream>\n") + ("#include <cstdio>") + ("\n#include <cstdlib>")
+ ("\n using namespace std;") + ("\nint main(int nNumberofArgs, char* pczArgs[]){");
JOptionPane.showConfirmDialog(null, output);
JOptionPane.showMessageDialog(null,"now you try");
lt = new TextArea(frame,20,80);
add(lt);
add(lesson1);
add(exit);
add(lesson2);
add(lesson3);
add(lesson4);
add(lesson5);
add(lesson6);
add(lesson7);
add(lesson8);
add(lesson9);
add(lesson10);
String output2 = ("Now learn how to close a program!");
System.out.println(output2);
}
}
// button action event to guide the user through every lesson
public boolean action(Event evt, Object arg){
String output = ("memorize this frame and write it, which is the start of all c++ programs") +
("\n\n\n #include <iostream>\n") + ("#include <cstdio>") + ("\n#include <cstdlib>")
+ ("\n using namespace std;") +
("\nint main(int nNumberofArgs, char* pczArgs[ ]){");
String output2 = "Now learn how to end a program \n\nLearn this, memorize it, now write it!"
+ "\n\n\nSystem(pause);" + "\nreturn 0;";
String output3 = "A computer needs to know what kind of variable the user is using to process" +
"\nthe program. The kind of variables are expressed by type. In other words, a type is just an identification marker." +
"\nTherefore, the most common type for words is String. So, initilizing a string " +
"\nwould look like String sEric.\n\nnow you try initializing your name.";
String output4 = "The most common type for numbers is double because double can represent fractions and whole numbers." +
" \nSo, here is an exampleof a double:\n\ndouble 2.5. \nnow you try writing a double. Type int is used for integers, example:" +
"\n\nint 2";
String output5 = "A less common type is character. This is used for single letters like a,b,c, etc. \n Example is: \n\nchar d.";
String output6 = "When you tell the computer to do a command, it will show as something like this: \n\ncout<< type your name;" +
"\n\nor int nAge; \n//(declaration) \n\ncin>> int nAge; \n//(this is where the user inputs his age) " +
"\n\ncout<< Eric is nAge; \n//(statement) + result is: \n//31" + "\n\nnow you try telling the computer to output your age or weight or height";
String output7 = "When you tell a user to input a command, it looks like:" + "\nint nAge;" +
" \ncin>> int nAge;\n\n//(this is where the user inputs his age and stays in the computer's memory)" + "\nnow you try telling a user"
+ "to input his grade point average";
String output8 = "now write the frame and tell the computer to output that I love my mom and write the end frame. \nIt should look like this:" +
"\n\n#include<iostream>\n#include<cstdlib>\n#include<cstdio>\nusing namespace std;\nint main(int nNumberofArgs, char* pczArgs[]{" +
"\ncout<<I love my mom;\nSystem(pause);\nreturn 0;\n}";
String output9 = "a brace ({) must always be closed at some point(}). a statement must always end with a semicolon(;). ";
String output10 = "congratulations! you are finished with chapter 2!" + "\n I am very proud of you!";
if (evt.target instanceof Button){
String label = (String)arg;
if ( label.equals("lesson 1"))
JOptionPane.showMessageDialog(null,output);
else{
if(label.equals("exit"))
System.exit(0);
else {
if(label.equals("lesson 2"))
JOptionPane.showMessageDialog(null,output2);
else{
if(label.equals("lesson 3"))
JOptionPane.showMessageDialog(null,output3);
else{
if(label.equals("lesson 4"))
JOptionPane.showMessageDialog(null,output4);
else{
if(label.equals("lesson 5"))
JOptionPane.showMessageDialog(null,output5);
else{
if(label.equals("lesson 6"))
JOptionPane.showMessageDialog(null,output6);
else{
if(label.equals("lesson 7"))
JOptionPane.showMessageDialog(null,output7);
else{
if(label.equals("lesson 8"))
JOptionPane.showMessageDialog(null,output8);
else{
if(label.equals("lesson 9"))
JOptionPane.showMessageDialog(null,output9);
else{
if(label.equals("lesson 10"))
JOptionPane.showMessageDialog(null,output10);
}
}
}
}
}
}
}
}
}
}
}
return true;
}
public void finish(){
}
case 3:
}
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