69 lines
1.0 KiB
Plaintext
69 lines
1.0 KiB
Plaintext
== Why is this an issue?
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include::../description.adoc[]
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=== Noncompliant code example
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[source,java]
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----
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public void example() {
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for (Foo obj : (List<Foo>) getFoos()) { // Noncompliant; cast unnecessary because List<Foo> is what's returned
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//...
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}
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}
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public List<Foo> getFoos() {
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return this.foos;
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}
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----
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=== Compliant solution
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[source,java]
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----
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public void example() {
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for (Foo obj : getFoos()) {
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//...
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}
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}
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public List<Foo> getFoos() {
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return this.foos;
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}
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----
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=== Exceptions
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Casting may be required to distinguish the method to call in the case of overloading:
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----
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class A {}
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class B extends A{}
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class C {
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void fun(A a){}
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void fun(B b){}
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void foo() {
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B b = new B();
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fun(b);
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fun((A) b); //call the first method so cast is not redundant.
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}
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}
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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include::../message.adoc[]
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'''
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== Comments And Links
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(visible only on this page)
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include::../comments-and-links.adoc[]
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endif::env-github,rspecator-view[]
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