X - AS Nida

Block Statements
Block Statements
The if-else if else Statement
Several statements can be grouped together into a
block statement
A block is delimited by braces : { … }
if (sum < 0)
System.out.print (“less”);
else
System.out.print (“more”);
System.out.println (“ OK”);
When the value of sum is -99 , it prints less OK
When the value of sum is 23 , it prints more OK
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Nested if Statements
Nested if Statements
Block Statements
Block Statements
There could be an if statement within another if or
an else clause
Example
These are called nested if statements
if (sum < 0)
System.out.print (“less”);
System.out.println (“ OK”);
An else clause is matched to the last unmatched if
(no matter what the indentation implies)
Braces can be used to specify the if statement to
which an else clause belongs
if (sum < 0) {
System.out.print (“less”);
System.out.println (“ OK”);
}
When the value of sum is 5,
The 1st prints OK.
The 2nd prints nothing at all.
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