{"id":91613,"date":"2025-01-07T04:00:56","date_gmt":"2025-01-07T00:30:56","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/%d8%b9%d8%a8%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d8%a7%d9%85%d8%a8%d8%af%d8%a7-%d8%af%d8%b1-%d8%b9%d9%85%d9%84\/"},"modified":"2025-01-07T04:00:56","modified_gmt":"2025-01-07T00:30:56","slug":"%d8%b9%d8%a8%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d8%a7%d9%85%d8%a8%d8%af%d8%a7-%d8%af%d8%b1-%d8%b9%d9%85%d9%84","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/%d8%b9%d8%a8%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d8%a7%d9%85%d8%a8%d8%af%d8%a7-%d8%af%d8%b1-%d8%b9%d9%85%d9%84\/","title":{"rendered":"\u0639\u0628\u0627\u0631\u0627\u062a \u0644\u0627\u0645\u0628\u062f\u0627 \u062f\u0631 \u0639\u0645\u0644"},"content":{"rendered":"
\n

\u0686\u0646\u062f \u0645\u062b\u0627\u0644 \u0633\u0627\u062f\u0647 \u06a9\u0647 \u0645\u0641\u0627\u0647\u06cc\u0645 \u0627\u0633\u0627\u0633\u06cc \u0639\u0628\u0627\u0631\u0627\u062a \u0644\u0627\u0645\u0628\u062f\u0627 \u0631\u0627 \u0639\u0645\u0644\u06cc \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n

\u0645\u062b\u0627\u0644 1 – \u0645\u0642\u0627\u06cc\u0633\u0647 \u0627\u062c\u0631\u0627\u06cc \u0628\u062f\u0648\u0646 \u0648 \u0628\u0627 \u0644\u0627\u0645\u0628\u062f\u0627<\/strong> <\/p>\n

\u0628\u062f\u0648\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0644\u0627\u0645\u0628\u062f\u0627:<\/p>\n

interface MyValueSemLambda1 {
double getValue(); \/\/ M\u00e9todo abstrato
}
class MyValueImpl implements MyValueSemLambda1{
private double value;
\/\/ Construtor para inicializar o atributo value
public MyValueImpl(double value) {
this.value = value;
}
\/\/ Implementa\u00e7\u00e3o do m\u00e9todo getValue
@Override
public double getValue() {
return this.value;
}
}
public class MyValueSemLambda {
public static void main(String[] args) {
MyValueSemLambda1 myVal = new MyValueImpl(98.6); \/\/ Atribuindo valor ao atributo
System.out.println(\"Value: \" + myVal.getValue()); \/\/ Imprime 98.6
}
}<\/code><\/p>\n

\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0644\u0627\u0645\u0628\u062f\u0627:<\/p>\n

interface MyValueCompara {
double getValue();
}
public class MyValueComparacao {
public static void main(String[] args) {
\/\/ Express\u00e3o lambda sem atributo, mas retornando um valor
MyValueCompara myVal = () -> 98.6;
System.out.println(\"Value: \" + myVal.getValue()); \/\/ Imprime 98.6
}
}<\/code><\/p>\n

\u0645\u062b\u0627\u0644 2 – LambdaDemo<\/strong><\/p>\n

\/\/ Uma interface funcional.
interface MyValue {
double getValue();
}
\/\/ Outra interface funcional.
interface MyParamValue {
double getValue(double v);
}
class LambdaDemo {
public static void main(String args[])
{
MyValue myVal; \/\/ declara uma refer\u00eancia de interface
\/\/ Aqui, a express\u00e3o lambda \u00e9 simplesmente uma express\u00e3o de constante.
\/\/ Quando ela \u00e9 atribu\u00edda a myVal, \u00e9 constru\u00edda a inst\u00e2ncia
\/\/ de uma classe em que a express\u00e3o lambda implementa o
\/\/ m\u00e9todo getValue() de MyValue.
myVal = () -> 98.6; Uma express\u00e3o lambda simples
\/\/ Chama getValue(), que \u00e9 fornecido pela
\/\/ express\u00e3o lambda atribu\u00edda anteriormente.
System.out.println(\"A constant value: \" + myVal.getValue());
\/\/ Agora, cria uma express\u00e3o lambda parametrizada e a atribui
\/\/ a uma refer\u00eancia de MyParamValue. Essa express\u00e3o lambda retorna
\/\/ o rec\u00edproco de seu argumento.
MyParamValue myPval = (n) -> 1.0 \/ n; Uma express\u00e3o lambda
que tem um par\u00e2metro
\/\/ Chama getValue() por interm\u00e9dio da refer\u00eancia de myPval.
System.out.println(\"Reciprocal of 4 is \" + myPval.getValue(4.0));
System.out.println(\"Reciprocal of 8 is \" + myPval.getValue(8.0));
\/\/ Uma express\u00e3o lambda deve ser compat\u00edvel com o m\u00e9todo definido
\/\/ pela interface funcional. Logo, essas instru\u00e7\u00f5es n\u00e3o funcionar\u00e3o:
\/\/ myVal = () -> \"three\"; \/\/ Erro! String n\u00e3o \u00e9 compat\u00edvel com double!
\/\/ myPval = () -> Math.random(); \/\/ Erro! O par\u00e2metro \u00e9 necess\u00e1rio!
}
}<\/code><\/p>\n

\u062e\u0631\u0648\u062c:
\u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a: 98.6
\u0645\u062a\u0642\u0627\u0628\u0644 4 \u0628\u0631\u0627\u0628\u0631 0.25 \u0627\u0633\u062a
\u0645\u062a\u0642\u0627\u0628\u0644 8 0.125 \u0627\u0633\u062a<\/p>\n