Flow control, exceptions and assertions
April 20th, 2008 by Boogie
I got a very low score on the test for flow control, exceptions and assertions. So now I am taking a better look on it and making some small test programs.
I’m posting them below, maybe somebody else can find them useful.
You are free to use them for your own personal development, but note that all content on this site is copyrighted.
- For statement
//for (int i = 1, int j = 1; true;){}// does not compile
for (int i = 1, j; i < 1;){i++;}// j is not initialized it’s OK, it is never used !!
for (int i = 1, j = 1; i < 1;){}
int a=2;
for (int i = 1, j = 1; a < 1;){}// the test can operate on different variables
for (int i = 1; i<1;);
for (int i = 1, j = 1; i < 1 ; out.println(“The increment part” + ” can do something else”)){}
for (;;)out.println(“All parts can be omitted!”);
- Switch statement
byte b = 2;
switch (b){
case 1: break;
//case 128: break;// does not compile !
}
int c = 2;
switch (c){
case 1: break;
case 128: break;// OK
}
switch (5){// OK
case 1: break;case 128: break;
}
switch (5){
case 1: break;
//case 1: break;// does not compile !
}
switch (new Integer(5)){// OK
case 1: break;
}
switch (new Byte((byte)5)){// OK
case 1: break;
//case 128: break;// does not compile !
}
switch (5){
case 1: break;
case 5: out.println(“5 … & falling through”);
default: out.println(“not in here”);
case 6: out.println(“6″);}
- While statement
//while (boolean b = false){}// does not compile, has to be declared before !
boolean b;while (b = false){}// OK
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