Learn JAVA Programming - Beginner to Master

Explore Java's primitive data types—byte, short, int, long, float, double, char, and boolean—along with their sizes, ranges, and default values, and how variables store them in memory.

Explore how to determine the size and range of Java data types using wrapper classes and their constants like MIN_VALUE, MAX_VALUE, and BYTES, with practical examples.

The lecture shows how the integer 5 is stored as binary 101 in a 32-bit memory and printed with Integer.toBinaryString. It also explains 2's complement for -5.

Discover how to use unicode.org charts to display Greek and Devanagari characters in a Java program, using hex codes like 0x0370 and 0x03C8 in NetBeans.

Install and set up IntelliJ IDE for Java development, choose the community version, configure JDK 13, create a simple MyFirst Java project, and run Hello World to see it execute.

Explore arithmetic operators in Java with practical demonstrations in NetBeans. Learn division and mod operation results for integers and floats, explore type compatibility, and control operator precedence with parentheses.

Learn to write Java expressions to compute triangle area from base and height using (1/2)bh, then extend to area with three sides using s=(a+b+c)/2 and Math.sqrt.

Explore bit merging and masking using bitwise or and bitwise and operations to set and test individual bits, and learn to store two numbers in one byte via nibble splitting.

Learn to format output in Java using flags, width, and precision with printf and format, covering integer, float, and string conversions, alignment, padding, and sign handling.

Explore java string class methods in NetBeans ide, including charAt, length, toUpperCase, trim, substring, and replace, then see strings as immutable and results stored in new variables.

Explore practical string handling in java by using startsWith and endsWith to detect the beginning and end of strings, along with charAt, indexOf, and lastIndexOf to locate characters or substrings.

Explore java string methods such as equals, equalsIgnoreCase, compareTo, contains, and concat, and learn about string pool, immutability, and valueOf for converting other data types to strings.

Parse an email with string methods to split into username and domain using indexOf and substring, then check if the domain is gmail with equals or compareTo.

Develop and test regular expressions in Java to validate binary and hexadecimal strings and a date format, using string conversion and the matches method.

Master the for loop by examining initialization, condition, and updation; practice printing 0 to 10, experimenting with increment, decrement, and multi-variable updates in a flexible loop.