Language basics - JavaTech: An Introduction to Scientific and Technical Computing with Java - page 43

do {
i = a.func ();
} while (i < 5)
Sometimes it is necessary to instantly break out of a while or do-while loop
without waiting on the test at either the beginning or end of the loop. The break
statement provides that functionality. The processing will jump from a loop via
a break statement and continue to the statements following the loop, as in this
example:
while (i < 5) {
i++;
x = a.func ();
if (x < 0) break; // jump out of the loop
b.func ();
}
c.func ();
The break statement in the loop causes processing to jump immediately to the
following c.func() statement. The b.func() statement is ignored and no
further loop processing is done, regardless of the value of the text expression.
Sometimes it is necessary to begin a loop, perform only the first portion, skip
the rest, but continue in the loop for further processing. The continue statement
does just that, causing the processing in a for or while loop to skip the rest of
the loop and return back to the start of the loop. An example is
while (i < 5) {
if (a.func ())
continue;
b.func ();
}
Here the processing jumps back to the start of the while loop and checks the test
expression if a.func() is true. Otherwise, it executes the b.func() statement.
In a do-while loop a continue will cause the processing to skip down to the
while(test) and execute the test expression.
2.9.3.4 The switch statement
The final flow control structure is the switch statement:
switch (int expression) {
case 1: statement1;
case 2: statement2;
default: statement3;
}