Suppose you change println to printline in the HelloPrinter.java program. Is this a compile-time error or a run-time error?
Question
Suppose you change println
to printline
in the HelloPrinter.java
program. Is this a compile-time error or a run-time error?
Solution
This would be a compile-time error.
In Java, the correct method to print a line to the console is println(), not printline(). If you change println to printline in the HelloPrinter.java program, the Java compiler will not recognize printline as a valid method.
Here are the steps of what would happen:
- You write and save your Java program with printline instead of println in HelloPrinter.java.
- You attempt to compile your program using the Java compiler (javac).
- The compiler tries to convert your source code into bytecode.
- When it encounters printline, it doesn't recognize it as a valid method.
- The compiler then throws a compile-time error.
- The error message will likely point to the line of code with printline and may say something like "cannot find symbol - method printline(java.lang.String)".
- To fix this error, you would need to change printline back to println.
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