Bitwise operation not concatenating with string in print() in Java











up vote
7
down vote

favorite












This code 



int a = 6;

System.out.print("The result is " + a*a);


works just fine, but this one



int a = 6;

System.out.print("The result is " + a^a);


produces an exception:




Exception in thread "main" java.lang.RuntimeException: Uncompilable
source code - Erroneous tree type: at
pkg1.pkg4.taking.input.TakingInput.main(TakingInput.java:11)




Why so?



The question arose when I was trying to print the results of several bitwise operations in one swoop, like so:



System.out.print(a&b + "n" + a|b + "n" + a^b);


I looked up the description of the print() method and several topics on bitwise operators and printing to the console on SO including the recommended topics when composing the question, but couldn't find an answer.






java printing bitwise-operators operator-precedence







share|improve this question
























  • I wonder what Java version are you compiling this with, it doesn't compile with java-11 for sure, forget RuntimeException!
    – nullpointer
    1 hour ago












  • That's what the error says: uncompilable source code. Another problem was I was using single quotes instead of double quotes with n.
    – John Allison
    1 hour ago

















up vote
7
down vote

favorite












This code 



int a = 6;

System.out.print("The result is " + a*a);


works just fine, but this one



int a = 6;

System.out.print("The result is " + a^a);


produces an exception:




Exception in thread "main" java.lang.RuntimeException: Uncompilable
source code - Erroneous tree type: at
pkg1.pkg4.taking.input.TakingInput.main(TakingInput.java:11)




Why so?



The question arose when I was trying to print the results of several bitwise operations in one swoop, like so:



System.out.print(a&b + "n" + a|b + "n" + a^b);


I looked up the description of the print() method and several topics on bitwise operators and printing to the console on SO including the recommended topics when composing the question, but couldn't find an answer.






java printing bitwise-operators operator-precedence







share|improve this question
























  • I wonder what Java version are you compiling this with, it doesn't compile with java-11 for sure, forget RuntimeException!
    – nullpointer
    1 hour ago












  • That's what the error says: uncompilable source code. Another problem was I was using single quotes instead of double quotes with n.
    – John Allison
    1 hour ago















up vote
7
down vote

favorite









up vote
7
down vote

favorite











This code 



int a = 6;

System.out.print("The result is " + a*a);


works just fine, but this one



int a = 6;

System.out.print("The result is " + a^a);


produces an exception:




Exception in thread "main" java.lang.RuntimeException: Uncompilable
source code - Erroneous tree type: at
pkg1.pkg4.taking.input.TakingInput.main(TakingInput.java:11)




Why so?



The question arose when I was trying to print the results of several bitwise operations in one swoop, like so:



System.out.print(a&b + "n" + a|b + "n" + a^b);


I looked up the description of the print() method and several topics on bitwise operators and printing to the console on SO including the recommended topics when composing the question, but couldn't find an answer.






java printing bitwise-operators operator-precedence







share|improve this question















This code 



int a = 6;

System.out.print("The result is " + a*a);


works just fine, but this one



int a = 6;

System.out.print("The result is " + a^a);


produces an exception:




Exception in thread "main" java.lang.RuntimeException: Uncompilable
source code - Erroneous tree type: at
pkg1.pkg4.taking.input.TakingInput.main(TakingInput.java:11)




Why so?



The question arose when I was trying to print the results of several bitwise operations in one swoop, like so:



System.out.print(a&b + "n" + a|b + "n" + a^b);


I looked up the description of the print() method and several topics on bitwise operators and printing to the console on SO including the recommended topics when composing the question, but couldn't find an answer.






java printing bitwise-operators operator-precedence




java printing bitwise-operators operator-precedence






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 1 hour ago

























asked 2 hours ago









John Allison

165112




165112












  • I wonder what Java version are you compiling this with, it doesn't compile with java-11 for sure, forget RuntimeException!
    – nullpointer
    1 hour ago












  • That's what the error says: uncompilable source code. Another problem was I was using single quotes instead of double quotes with n.
    – John Allison
    1 hour ago




















  • I wonder what Java version are you compiling this with, it doesn't compile with java-11 for sure, forget RuntimeException!
    – nullpointer
    1 hour ago












  • That's what the error says: uncompilable source code. Another problem was I was using single quotes instead of double quotes with n.
    – John Allison
    1 hour ago


















I wonder what Java version are you compiling this with, it doesn't compile with java-11 for sure, forget RuntimeException!
– nullpointer
1 hour ago






I wonder what Java version are you compiling this with, it doesn't compile with java-11 for sure, forget RuntimeException!
– nullpointer
1 hour ago














That's what the error says: uncompilable source code. Another problem was I was using single quotes instead of double quotes with n.
– John Allison
1 hour ago






That's what the error says: uncompilable source code. Another problem was I was using single quotes instead of double quotes with n.
– John Allison
1 hour ago














1 Answer
1






active

oldest

votes

















up vote
13
down vote



accepted










This is because the + has higher precedence than the ^ so it compiles to:



("The result is " + a) ^ a


Which obviously will not work. Put parenthesis around it:



System.out.print("The result is " + (a^a));





share|improve this answer



















  • 1




    Ouch... that was so basic... Thanks. :)
    – John Allison
    2 hours ago










  • @JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
    – Jai
    2 hours ago











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
13
down vote



accepted










This is because the + has higher precedence than the ^ so it compiles to:



("The result is " + a) ^ a


Which obviously will not work. Put parenthesis around it:



System.out.print("The result is " + (a^a));





share|improve this answer



















  • 1




    Ouch... that was so basic... Thanks. :)
    – John Allison
    2 hours ago










  • @JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
    – Jai
    2 hours ago















up vote
13
down vote



accepted










This is because the + has higher precedence than the ^ so it compiles to:



("The result is " + a) ^ a


Which obviously will not work. Put parenthesis around it:



System.out.print("The result is " + (a^a));





share|improve this answer



















  • 1




    Ouch... that was so basic... Thanks. :)
    – John Allison
    2 hours ago










  • @JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
    – Jai
    2 hours ago













up vote
13
down vote



accepted







up vote
13
down vote



accepted






This is because the + has higher precedence than the ^ so it compiles to:



("The result is " + a) ^ a


Which obviously will not work. Put parenthesis around it:



System.out.print("The result is " + (a^a));





share|improve this answer














This is because the + has higher precedence than the ^ so it compiles to:



("The result is " + a) ^ a


Which obviously will not work. Put parenthesis around it:



System.out.print("The result is " + (a^a));






share|improve this answer














share|improve this answer



share|improve this answer








edited 2 hours ago

























answered 2 hours ago









GBlodgett

7,85541531




7,85541531








  • 1




    Ouch... that was so basic... Thanks. :)
    – John Allison
    2 hours ago










  • @JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
    – Jai
    2 hours ago














  • 1




    Ouch... that was so basic... Thanks. :)
    – John Allison
    2 hours ago










  • @JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
    – Jai
    2 hours ago








1




1




Ouch... that was so basic... Thanks. :)
– John Allison
2 hours ago




Ouch... that was so basic... Thanks. :)
– John Allison
2 hours ago












@JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
– Jai
2 hours ago




@JohnAllison If you used an IDE, you would probably know about this before you actually compile and run it.
– Jai
2 hours ago


















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