@JvmField val PLUS_ASSIGN = Name.identifier("plusAssign") @JvmField val MINUS_ASSIGN = Name.identifier("minusAssign") // If you add new unary, binary or assignment operators, add it to OperatorConventions as wel
data class Vec(val x: Float, val y: Float) { operator fun plus(v: Vec) = Vec(x + v.x, y + v.y) } val v = Vec(2f, 3f) + Vec(4f, 1f) 优点10. 解构 一些对象可以被解构,如对Map进行迭代 Demo 代码语言:txt AI代码解释 for ((key, value) in map) { print("Key: $key") ...
1. 是一个方法,而非运算符 2. 只能适用于引用数据类型 3. Object类中equals()的定义: publicbooleanequals(Object obj) {return(this==obj); } 说明:Object类中定义的equals()和==的作用是相同的:比较两个对象的地址值是否相同.即两个引用是否指向同一个对象实体 4. 像String、Date、File、包装类等都重写...
("mail".equals(type)){returnnewMailSender();}elseif("sms".equals(type)){returnnewSmsSender();}else{System.out.println("Please input right type!");}}}-测试类publicclassFactoryTest{publicstaticvoidmain(String[]args){SendFactory factory=newSendFactory();Sender sender=factory.produce("sms");...
{ return line.trim().split("(\\s|\\p{Punct})+"); } Long occurrencesCount(Document document, String searchedWord) { long count = 0; for (String line : document.getLines()) { for (String word : wordsIn(line)) { if (searchedWord.equals(word)) { count = count + 1; } } } ...
package com.shine.operator; public class Demo04 { public static void main(String[] args) { /** * 三元运算符 布尔表达式:结果为布尔值的表达式【判定】 * 布尔表达式 ? 结果01 : 结果02; * 布尔表达式结果为true,得到结果01 * 布尔表达式结果为false,得到结果02 */ // 比较a和b哪个大? int...
The comparison with NULL using the equals operator (=) always returns an unknown value, even if the relationship is not set. The second query will always return an empty result.Empty Collection Comparison ExpressionsThe IS [NOT] EMPTY comparison expression tests whether a collection-valued path ex...
publicclassStringCompareUsingEqualsOperator{publicstaticvoidmain(String[]args){StringfirstString="Gaurav"...
String plusFour; ... } This embeddable class is used by theAddressentity: @Entity public class Address { @Id protected long id String street1; String street2; String city; String province; @Embedded ZipCode zipCode; String country;
Equals(Object) Indicates whether some other object is "equal to" this one. (Inherited from Object) GetHashCode() Returns a hash code value for the object. (Inherited from Object) Identity() Obsolete. Returns a unary operator that always returns its input argument. JavaFinalize() Ca...