Java Control Structures

allows selection of specific sections of code to be executed

• decision control structures(if,else,switch)

• repetition control structures(while,do-while,for)

• branching statements(break,continue,return)

allow executing specific sections of code a number of times

• decision control structures(if,else,switch)

• repetition control structures(while,do-while,for)

• branching statements(break,continue,return)

allows redirection of program flow

• decision control structures(if,else,switch)

• repetition control structures(while,do-while,for)

• branching statements(break,continue,return)

allows us to change the ordering of how the statements in our programs are executed

• decision control structures

• repetition control structures

• control structures

• branching statements

specifies that a statement(or block of code) will be executed if and only if a certain boolean statement is true.

• if-else statement

• if statement

• else if statement

• nested if-else statement

What is the output?

int grade = 68;

if(grade > 60) {

System.out.println("Congratulations!");

}

• "Congratulations!"

• Congratulations!

• Syntax Error

• Compilation Error

What is the output?

int grade = 68;

if(grade > 60) {

System.out.println("Congratulations!");

System.out.println("You passed!");

}

• Congratulations!

  You passed!

• "Congratulations!"

  "You passed!"

• Congratulations

• You passed

its a part of a statement that should evaluate a boolean value that means that the execution of the condition should either result to a value of true or a fulse

• if-else statement

• boolean_expression

• statement 1

  statement 2

• condition

used when we want to execute a certain statement if a condition is true, and a different statement if the condition is false

• if statement

• nested if-else statement

• if-else statement

• else if statement

What is the output?

int grade = 68;

if(grade > 60)

System.out.println("Congratulations!");

else

System.out.println("Sorry you failed");

• "Congratulations!"

  "Sorry you failed"

• Congratulations!

• Sorry you failed

• Congratulations!

  Sorry you failed