Control Flow Statements in Java

• Control flow statement decide which statement runs, how many times runs, which order have to runs.
• Control flow statements make Java programs dynamic, logical, and efficient.
• This blog explains control flow statements in Java in a beginner-friendly and professional manner, suitable for exams, interviews, and blog writing.

Types of Control Flow Statements in Java
Java control flow statements are broadly classified into three categories:

• Decision-Making Statements
• Looping Statements
• Jump Statements

1) Decision making statement

Decision making statement take decision based on the value.

If statement

• if is a java keyword.
• Execute code only if contdition is true.

Syntax:

if (condition) {
  // Code to be executed if the condition is true
}

Else statement

• else is a java keyword.
• Execute code only if contdition is false.

Syntax:

if (condition) {
  // Code to be executed if the condition is true
} else {
  // Code to be executed if the condition is false
}

Else-if statement

• else if is a java keyword.
• If we want to check multiple condition, we go for else if statement.

Syntax:

if (condition1) {
  // Code to be executed if condition1 is true
} else if (condition2) {
  // Code to be executed if condition2 is true
} else {
  // Code to be executed if none of the conditions are true
}

2) Looping statement :
Looping statements allow a block of code to execute repeatedly as long as a condition is satisfied.

While loop :
The loop needs to continue as long as a specific condition remains true
Syntax:

while (condition) {
    // code to be executed
}

• The initialization happens outside the loop.
• The condition is a boolean expression checked before each iteration.
• The update statement (increment/decrement) must be handled explicitly inside the loop body to avoid an infinite loop.

For loop :
It provides a concise structure by putting the initialization, condition, and update (increment/decrement) statements in a single line
Syntax:

for (initialization; condition; update) {
    // code to be executed
}

Initialization: Executed once at the very beginning of the loop.
Condition: A boolean expression checked before each iteration. If true, the loop body executes.
Update: Executed after each iteration of the loop body.