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Perform an action multiple times based on a boolean condition, checked before the first action (WHILE .. DO)

Starting with a variable x=1, Print the sequence "1,2,4,8,16,32,64,128," by doubling x and checking that x is less than 150.
DiskEdit
python
x = 1
while x < 150:
print '%s, ' % x,
x *= 2
DiskEdit
csharp
int x = 1;

while (x < 150)
{
x *= 2;
Console.Write("{0},", x);
}
ExpandDiskEdit
java
int x = 1;
while (x < 150) {
System.out.println(x+",");
x*=2;
}
ExpandDiskEdit
fantom
x := 1
while (x < 150) {
Env.cur.out.print("$x,")
x *= 2
}
echo

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