Basic Java Programs by Saksham Computers
1. Hello World:
class Main {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
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2. Variables and Data Types:
public class Main {
public static void main(String[] args) {
int age = 30;
double height = 5.8;
String name = "Alice";
boolean isStudent = true;
System.out.println("Name: " + name);
System.out.println("Age: " + age);
System.out.println("Height: " + height);
System.out.println("Is Student: " + isStudent);
}
}
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3. Operators:
public class Operators {
public static void main(String[] args) {
int x = 10;
int y = 5;
int sum = x + y;
int difference = x - y;
int product = x * y;
int quotient = x / y;
int remainder = x % y;
System.out.println("Sum: " + sum);
System.out.println("Difference: " + difference);
System.out.println("Product: " + product);
System.out.println("Quotient: " + quotient);
System.out.println("Remainder: " + remainder);
}
}
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4. Conditional Statements (if/else):
public class Main {
public static void main(String[] args) {
int age = 18;
if (age >= 18) {
System.out.println("You are an adult.");
} else {
System.out.println("You are a minor.");
}
}
}
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5. Loops (for loop):
public class Main {
public static void main(String[] args) {
int i = 0;
while (i < 5) {
System.out.println("Iteration: " + i);
i++;
}
}
}
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7. Arrays:
public class Main {
public static void main(String[] args) {
int[] numbers = {10, 20, 30, 40, 50};
for (int i = 0; i < numbers.length; i++) {
System.out.println("Element at index " + i + ": " + numbers[i]);
}
}
}
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8. Methods:
public class Main {
public static int add(int a, int b) {
return a + b;
}
public static void main(String[] args) {
int result = add(5, 3);
System.out.println("Sum: " + result);
}
}
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https://www.youtube.com/watch?v=VTzzmqNwGzM&t=735s