e-Commerce Applications Using Oracle8i and Java from Scratch

Control of Flow Functions

Control of flow statements enable you to control the flow of execution in a program. Control of flow statements enable programmers to break the sequential flow of programs. Several types of control flow statements are supported in Java:

• if statements—The syntax of the if statement is as follows:

  If (expression)
      Statement;

  The if statement checks the expression value (which returns a boolean) and if the value is true, it executes the statement block. On the other hand, if the expression value is false, the statement block is skipped and execution proceeds.

• if-else statement—The syntax of the if-else statement is as follows:

  If (expression)
      Statement1;
  Else
      Statement2;
  

  The expression is checked and if it returns true, statement1 ...