Java Reference
In-Depth Information
Example 14.13-1. The
do
Statement
The following code is one possible implementation of the
toHexString
method of class
Integer
:
public static String toHexString(int i) {
StringBuffer buf = new StringBuffer(8);
do {
buf.append(Character.forDigit(i & 0xF, 16));
i >>>= 4;
} while (i != 0);
return buf.reverse().toString();
}
Because at least one digit must be generated, the
do
statement is an appropriate control
structure.
14.14. The
for
Statement
The
for
statement has two forms:
• The basic
for
statement.
• The enhanced
for
statement
ForStatement:
BasicForStatement
EnhancedForStatement
14.14.1. The basic
for
Statement
The basic
for
statement executes some initialization code, then executes an
Expression
, a
Statement
, and some update code repeatedly until the value of the
Expression
is
false
.
BasicForStatement:
for (
ForInit
opt
;
Expression
opt
;
ForUpdate
opt
)
Statement
ForStatementNoShortIf:
for (
ForInit
opt
;
Expression
opt
;
ForUpdate
opt
)
StatementNoShortIf
ForInit:
StatementExpressionList
LocalVariableDeclaration
ForUpdate:
