23 lines
698 B
Plaintext
23 lines
698 B
Plaintext
It is preferable to place string literals on the left-hand side of an ``++equals()++`` or ``++equalsIgnoreCase()++`` method call.
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This prevents null pointer exceptions from being raised, as a string literal can never be null by definition.
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== Noncompliant Code Example
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----
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String myString = null;
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System.out.println("Equal? " + myString.equals("foo")); // Noncompliant; will raise a NPE
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System.out.println("Equal? " + (myString != null && myString.equals("foo"))); // Noncompliant; null check could be removed
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----
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== Compliant Solution
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----
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System.out.println("Equal?" + "foo".equals(myString)); // properly deals with the null case
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----
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