This class defines a compareTo(...) method but inherits its equals() method from java.lang.Object. Generally, the value of compareTo should return zero if and only if equals returns true. If this is violated, weird and unpredictable failures will occur in classes such as PriorityQueue. In ...
6:if(this.tableName.compareTo(o.tableName) ==0) { 7:returnthis.fkFieldName.compareTo(o.fkFieldName); 8: } 9:returnthis.tableName.compareTo(o.tableName); 10: } 11: } 在第6行我来自FindBugs:Bug: net.blabla.SqlFixer$ForeignKeyConstraint defines compareTo(SqlFixer$ForeignKeyConstraint) a...
Since its introduction in Java 8, the Stream API has become a staple of Java development. The basic operations like iterating, filtering, mapping sequences of elements are deceptively simple to use. But these can also be overused and fall into some common pitfalls. To get a better understandi...
valueOf(String name) Returns the enum constant of this type with the specified name. static IntendedUse[] values() Returns an array containing the constants of this enum type, in the order they are declared. Methods inherited from class java.lang.Enum compareTo, equals, getDeclaringClass, ...
However, this leads to problems when comparing objects of two different classes, as compareTo() usually does not handle this case, e.g. for Enums which implement compareTo() only among objects of the same class. Also, in Java it is only recommended - but not strictly required - that ...
Typesafe enums offer a better alternative to Java's traditional enumerated types. Here's how to use typesafe enums correctly in your Java code.
[java] public static void main(String[] args) { Optional<Integer> maxAge = employeeList .stream() .collect(Collectors.mapping((Employee emp) -> emp.getAge(), Collectors.maxBy(Integer::compareTo))); System.out.println("Max Age: " + maxAge.get()); } [/java][/su_box]OUTPUT of ...
static IntendedUse[] values() Returns an array containing the constants of this enum type, in the order they are declared. Methods inherited from class java.lang.Enum clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf Methods inherit...
All the table cells become wider, expanding to fill the extra horizontal space. The table in SimpleTableDemo.java declares the column names in a String array: String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian"}; Its data is initialized and stored...
getName().compareTo(f2.getName())); final boolean isTopDir = directory.equals(TermuxWidgetService.SHORTCUTS_DIR); final boolean isTopDir = directory.equals(TermuxConstants.TERMUX_SHORTCUT_SCRIPTS_DIR); getActionBar().setDisplayHomeAsUpEnabled(!isTopDir); if (isTopDir && mCurrentFiles....