How to insert multiple tabs string in java?
Your example should work; however there’s no reason to append each tab character individually. This works, too: The errors you are getting are not related to the tab characters.
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How to add RGB values into setColor() in Java?
You can get a Color instance with the simple code: Then, you can set RGB color to your object with something like that: Hope it helps you!
How do I replace a character in a string in Java?
Try using String.replace() or String.replaceAll() instead. (Both replace all occurrences; replaceAll allows use of regex.)
how to use drawArc()
To understand the arguements read the javadoc: http://docs.oracle.com/javase/7/docs/api/java/awt/Graphics.html#drawArc(int,%20int,%20int,%20int,%20int,%20int)
What is the difference between run-time error and compiler error?
A run time error will only occur when the code is actually running. These are the most difficult – and lead to program crashes and bugs in your code which can be hard to track down. An example might be trying to convert a string: “hello” into an integer: The compiler may not see this … Read more
When to use a Map instead of a List in Java?
Java map: An object that maps keys to values. A map cannot contain duplicate keys; each key can map to at most one value. Java list: An ordered collection (also known as a sequence). The user of this interface has precise control over where in the list each element is inserted. The user can access … Read more
How do I join two lists in Java?
In Java 8:
Java: Not a statement
Java restricts the types of expressions that are allowed in so-called “expression statements”. Only meaningful expressions that have potential side effects are allowed. It disallows semantically meaningless statements like 0; or a + b;. They’re simply excluded from the language grammar. A function call like foo() can, and usually does, have side effects, so it is not a meaningless statement. … Read more
What’s the console.log() of java?
The Log class: API for sending log output. Generally, use the Log.v() Log.d() Log.i() Log.w() and Log.e() methods. The order in terms of verbosity, from least to most is ERROR, WARN, INFO, DEBUG, VERBOSE. Verbose should never be compiled into an application except during development. Debug logs are compiled in but stripped at runtime. Error, warning and info logs are always kept. Outside of Android, System.out.println(String msg) is used.
Use String.split() with multiple delimiters
I think you need to include the regex OR operator: What you have will match:[DASH followed by DOT together] -.not[DASH or DOT any of them] – or .