Control flow statements in Java allow you to control the flow of your program's execution based on certain conditions. These statements include if-else, switch, and loops like for, while, and do-while. Let's explore each with simple examples:

• If-else Statement :
  The if-else statement allows you to execute a block of code based on whether a condition is true or false.

int x = 10;
if (x > 0) {
    System.out.println("x is positive");
} else {
    System.out.println("x is not positive");
}

• Switch Statement :
  The switch statement evaluates an expression and executes code blocks based on matching cases.

int day = 3;
String dayName;
switch (day) {
    case 1:
        dayName = "Monday";
        break;
    case 2:
        dayName = "Tuesday";
        break;
    case 3:
        dayName = "Wednesday";
        break;
    default:
        dayName = "Invalid day";
}
System.out.println("Day is: " + dayName);

• For Loop :
  The for loop iterates over a range of values, executing a block of code each time.

for (int i = 1; i <= 5; i++) {
    System.out.println("Count: " + i);
}

• While Loop :
  The while loop executes a block of code as long as a condition is true.

int i = 1;
while (i <= 5) {
    System.out.println("Count: " + i);
    i++;
}

• Do-while Loop :
  The do-while loop is similar to the while loop but guarantees the code block will execute at least once before evaluating the condition.

int i = 1;
do {
    System.out.println("Count: " + i);
    i++;
} while (i <= 5);