java Archives - Page 299 of 302

When/why to call System.out.flush() in Java

System.out is based around a PrintStream which by default flushes whenever a newline is written. From the javadoc: autoFlush – A boolean; if ...

April 3, 2022
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Printing array elements with a for loop

This is a challenge question from my online textbook I can only get the numbers to prin forward… 🙁 Write a for loop ...

April 3, 2022
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Why is Netbeans suggesting I “Flip operands of the binary operators” in my Java code

Netbeans frequently suggests that I “flip operands of the binary operator” when I’m doing mathematical calculations. For example, in the following line of ...

April 3, 2022
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Java ArrayList of Doubles

April 3, 2022
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Java equivalent of unsigned long long?

April 3, 2022
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Can we execute a java program without a main() method? [duplicate]

Now – no Prior to Java 7: Yes, sequence is as follows: jvm loads class executes static blocks looks for main method and ...

April 3, 2022
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How to return nothing from a function that returns value?

Your function does not have a return for every possible circumstance. You have: if (null)... if (less than root)... else ( if ...) ...

April 3, 2022
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How to really read text file from classpath in Java

With the directory on the classpath, from a class loaded by the same classloader, you should be able to use either of: // ...

April 3, 2022
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Throwing multiple exceptions in Java

April 3, 2022
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Getting “unixtime” in Java

Avoid the Date object creation w/ System.currentTimeMillis(). A divide by 1000 gets you to Unix epoch. As mentioned in a comment, you typically ...

April 3, 2022
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