Apply Basics of Java Lesson 1.1 - 1.4

​PERFORMING OBJECT-ORIENTED ANALYSIS AND DESIGN (POAD)

LO 1. Apply basics of Java language

Apply basics of Java language

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Write a Java program to print 'Hello' on screen and then print your name on a separate line

Expected Output :Hello

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Write a Java program to print the sum of two numbers.

Expected Output :110

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Write a Java program to divide two numbers and print on the screen

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Write a Java program to print the result of the following operations.

a. -5 + 8 6

b. (55+9) % 9

c. 20 + -35 / 8

d. 5 + 15 / 3 * 2 - 8 % 3

Expected Output :

43

1

19

13

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Write a Java program that takes two numbers as input and display the product of two numbers

Expected Output :25 x 5 = 125

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Write a Java program to print the sum (addition), multiply, subtract, divide and remainder of two numbers.

Expected Output :125 + 24 = 149

125 - 24 = 101

125 x 24 = 3000

125 / 24 = 5

125 mod 24 = 5

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Write a Java program that takes a number as input and prints its multiplication table up to 10

Expected Output :8 x 1 = 8

8 x 2 = 16

8 x 3 = 24

...8 x 10 = 80

​https://www.w3resource.com/java-exercises/basic/index.php

Recap

Using your web browser, log on to either one of the following URLs:

https://www.sololearn.com/learning

​https://www.onlinegdb.com/

​

​

Create a simple "Hello World!" java program.

Then answer the questions in the next slides​

​

Programming | Java

Apply basics of Java language

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Why is it the public class Main is important when creating a java program?

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What does public static void main(String []args) do?

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Explain this statement

System.out.println("Hello World");

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Provide a sample value for int data type

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Provide a sample value for char data type

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Provide a sample value for string data type

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Provide a sample value for float data type

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Provide a sample value for boolean data type

​Lesson Objectives:

At the end of the lesson, students shall be able to:

1.1 Demonstrate knowledge of Java technology and Java programming

1.2 Create executable Java applications in accordance with Java framework

1.3 Import Java packages to make them accessible in the code

1.4 Demonstrate working with Java Data types in accordance with Java framework

Apply basics of Java language

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​Try this...

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What is a comment? Is the comment ignored by the compiler? How do you denote a comment line and a comment paragraph?

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​Example

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​Try this...

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What is the statement to display a string on the console?

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Create a program that would display your full name (First Name Lastname), Section, Subject and Teacher in different lines. Note: Use multi line and single line comment to label the parts of your program. Ex:

System.out.println("Dela Cruz, Juan"); \\Firstname

Make sure that the program is executable or running without syntax errors

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What is a keyword? List some Java keywords.

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Is Java case sensitive? What is the case for Java keywords?

​https://www.tutorialspoint.com/java/java_basic_syntax.htm

​Java Keywords

The following list shows the reserved words in Java. These reserved words may not be used as constant or variable or any other identifier names.

Draw

Show the output from the given code:

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What is the Java source filename extension, and what is the Java bytecode filename extension?

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What are the input and output of a Java compiler?

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What is the JVM?

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Can Java run on any machine? What is needed to run Java on a computer?

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If a NoClassDefFoundError occurs when you run a program, what is the cause

of the error?

Open Ended

If a NoSuchMethodError occurs when you run a program, what is the cause of the

error?

​Lesson Objectives:

At the end of the lesson, students shall be able to:

1.1 Demonstrate knowledge of Java technology and Java programming

1.2 Create executable Java applications in accordance with Java framework

1.3 Import Java packages to make them accessible in the code

1.4 Demonstrate working with Java Data types in accordance with Java framework

Apply basics of Java language