Control statement

 

If statement in Java

• It is used to test the condition.
• If the condition is true its body will execute otherwise does not execute.

If else statement in Java

• It is used to test the condition.
• If the condition is true body of if will execute otherwise body of else execute.

If else if ladder statement in Java 

• It is used to test the condition.
• If executes only one condition at a time.
• The condition which is true first from the top will execute.

Nested if statement in Java

• It is used to test the condition.
• One if inside another if is called nested if.

Switch statement in Java

• Switch statement allows us to execute one statement from many statement and the statements are called case.
• Inside the body of switch there are a number of cases and there is a single number is passed at the place of parameter to select and execute a case.

• In the switch statement a value/number is passed in the place of parameter and the case from which the parameter is matched is executed.
• If no case matched with parameter then default case will execute.

Loop in Java

• Loop is a part of control flow statements.
• To run the particular block of code continuously until a required condition is fullfil is called looping.
• Loop is used when there is a need to execute a part of program multiple times.

 Some point about all the loop:

• There is a control variable, called the loop counter.
• The control variable must be initialized; in other words, it must have an initial value.
• The increment/decrement of the control variable, which is modified each time the iteration of the loop occurs.
• The loop condition that determines if the looping should continue or the program should break from it.   

For loop in Java

• In for loop there are three part initialization,condition and increment/decrement.
• Initialization part executes only once.
• Condition part defines the condition for the execution of code block.
• All the three part of for loop are optional.

While loop in Java

• It's body will execute until the given condition is true.

Do while loop in Java

• It's body will execute until the given condition is true

Jump Statement in Java ?

• It is used to transfer the control from one point to another point in the program.
• There are three jump statements are used in java.
• break statement
• continue statement
• return statement

break statement

• It is used to transfer the control out of the body of loop.
• In other word we can say that it terminates the current loop.
• break statement are mostly used with loop(for,while,do while) and switch statement.

  Syntax :- 

      

      break;

continue statement

• It is used to skip the next statement and continue the loop.
• continue statement are mostly used with loop(for,while,do while).

  

   Syntax :- 

      

      continue;

return statement

• return statement terminates the current function and transfer the control to the calling function.
• we can also use return statement to trasfer value from one function to another.

      Syntax :- 

      

      return;