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5 Conditional, Loop
and Jump Statements
in Java
Chapter Profile
Conditional Statements Loop Statements
Jump Statements Errors in Java
Writing Some More Programs
The programs we have written so far were executed statement by statement in a top-to-bottom
approach. However, sometimes we need to change the order of execution for statements or
repeat some statements a certain number of times. Additionally, there are some situations where
we need to stop the execution of certain statements. Java provides three types of statements to
handle these requirements:
Conditional Statements
Loop Statements
Jump Statements
Let us learn about these in detail.
CONDITIONAL STATEMENTS
Conditional statements allow us to change the default flow of a program. They transfer control of
a program from one statement to another, depending on the condition provided. If the provided
condition returns true, a block of specified statements is executed. Conditional statements are
also known as decision-making statements.
There are four decision-making statements in Java:
if statement
if … else statement
if … else… if statement
switch statement
Let‘s learn more about them.
The if Statement
The if statement is the most basic conditional statement in Java that allows us to test a condition
before executing a block of statements. If the provided conditional expression returns true, the
statements specified in the body of the 'if' statement are executed.
74 iPRIME (Ver. 2.2)–VIII

