[silven87]

I am trying to turn a lowercase character into an uppercase character. The program will prompt the users to enter a character then it will display the character as is then will convert it into an uppercase character if need be.

char aChar;
System.out.println("enter a char");
aChar = (char)System.in.read();
System.in.read(); System.in.read(); //absorbs enter key.
System.out.println(aChar);
if(Character.isLowerCase(aChar));
	Character.toUpperCase(aChar);
System.out.println(aChar);

how should I fix this so it will turn the lowercase into an uppercase?

[macosxnerd101]

Character.toUpperCase() returns an uppercase character. You have to assign the result of this method back to the variable. What happens is that the value stored in the variable is copied and passed to the method. So only a copy is changed, and not the value the variable stores.

[silven87]

Thank you, I changed the program a little to this

char aChar, bChar;
System.out.println("enter a char");
aChar = (char)System.in.read();
System.in.read(); System.in.read(); //absorbs enter key.
System.out.println(aChar);
if(Character.isLowerCase(aChar));
	bChar = Character.toUpperCase(aChar);
System.out.println(bChar);

It now works perfectly.

[macosxnerd101]

Glad I could help!