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data-structure-with-java / Control Flow
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Control Flow

Control flow statements let you decide which code to execute based on conditions. They are the steering wheel of your program.

if-else
Basic decision making.

if (age >= 18) {
    System.out.println("Adult");
} else if (age >= 13) {
    System.out.println("Teenager");
} else {
    System.out.println("Child");
}

switch
Multiple fixed-value checks.

switch (day) {
    case "Monday": System.out.println("Start of week"); break;
    case "Friday": System.out.println("TGIF!"); break;
    default: System.out.println("Midweek");
}

Ternary Operator
Short if-else: condition ? valueIfTrue : valueIfFalse

int max = (a > b) ? a : b;
Two Minute Drill
  • if-else for branching based on boolean conditions.
  • switch for multiple fixed-value checks.
  • Ternary operator for compact assignment.
  • Use braces even for single statements for clarity.

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