freeacs/freeacs

Abstract classes should not have public constructors. Constructors of abstract classes can only be called in constructors of their subclasses. So there is no point in making them public. The protected modifier should be enough.

Noncompliant Code Example

public abstract class AbstractClass1 {
    public AbstractClass1 () { // Noncompliant, has public modifier
        // do something here
    }
}

Compliant Solution

public abstract class AbstractClass2 {
    protected AbstractClass2 () {
        // do something here
    }
}

Abstract classes should not have public constructors. Constructors of abstract classes can only be called in constructors of their subclasses. So there is no point in making them public. The protected modifier should be enough.

Noncompliant Code Example

public abstract class AbstractClass1 {
    public AbstractClass1 () { // Noncompliant, has public modifier
        // do something here
    }
}

Compliant Solution

public abstract class AbstractClass2 {
    protected AbstractClass2 () {
        // do something here
    }
}

Checks for empty line separators after header, package, all import declarations,fields, constructors, methods, nested classes,static initializers and instance initializers.

ATTENTION: empty line separator is required between token siblings,not after line where token is found.If token does not have same type sibling then empty lineis required at its end (for example for CLASS_DEF it is after '}').Also, trailing comments are skipped.

ATTENTION: violations from multiple empty lines cannot be suppressed via XPath:#8179.

This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.

Checks the placement of right curly braces ('}') for code blocks.This check supports if-else, try-catch-finally blocks, while-loops, for-loops,method definitions, class definitions, constructor definitions,instance, static initialization blocks, annotation definitions and enum definitions.For right curly brace of expression blocks of arrays, lambdas and class instancesplease follow issue#5945.For right curly brace of enum constant please follow issue#7519.

This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.