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#Java - Code Snippets for '#Default methods' - 3 code snippet(s) found

 Sample 1. Interface Default Methods ( Base Class Definition has precedence over Interface Default Method if both are being extended and implemented and have common method definition )

HelloJava8Base 

public class HelloJava8Base {
public void defaultMethod() {
System.out.println("Default Method Base Class Implementation");
}
}

DefaultMethodInterface

public interface DefaultMethodInterface {
default public void defaultMethod() {
System.out.println("Default Method Interface Implementation");
}
}

HelloJava8

public class HelloJava8 extends HelloJava8Base implements DefaultMethodInterface,DefaultMethodInterface2 {
public static void main(String[] args){
DefaultMethodInterface dmi = new HelloJava8();
dmi.defaultMethod(); // Prints "Default Method Base Class Implementation"
}
}

   Like      Feedback     interface default methods  java 8  interfaces


 Sample 2. Interface Default Methods

public interface DefaultMethodInterface {
default public void defaultMethod(){
System.out.println("DefaultMethodInterface");
}
}

public interface DefaultMethodInterface2 {
default public void defaultMethod(){
System.out.println("DefaultMethodInterface2");
}
}

public class HelloJava8 implements DefaultMethodInterface,DefaultMethodInterface2 {
public static void main(String[] args){
DefaultMethodInterface defMethIn = new HelloJava8();
defMethIn.defaultMethod();
}

public void defaultMethod(){
System.out.println("HelloJava8");
}
}

   Like      Feedback     interface default methods   interfaces  java 8


 Sample 3. Internal Implementation of java.time.chrono.era

public interface Era extends TemporalAccessor, TemporalAdjuster {
int getValue();

@Override
default boolean isSupported(TemporalField field) {
if (field instanceof ChronoField) {
return field == ERA;
}
return field != null && field.isSupportedBy(this);
}

@Override // override for Javadoc
default ValueRange range(TemporalField field) {
return TemporalAccessor.super.range(field);
}

@Override // override for Javadoc and performance
default int get(TemporalField field) {
if (field == ERA) {
return getValue();
}
return TemporalAccessor.super.get(field);
}

@Override
default long getLong(TemporalField field) {
if (field == ERA) {
return getValue();
} else if (field instanceof ChronoField) {
throw new UnsupportedTemporalTypeException("Unsupported field: " + field);
}
return field.getFrom(this);
}

@SuppressWarnings("unchecked")
@Override
default <R> R query(TemporalQuery<R> query) {
if (query == TemporalQueries.precision()) {
return (R) ERAS;
}
return TemporalAccessor.super.query(query);
}

@Override
default Temporal adjustInto(Temporal temporal) {
return temporal.with(ERA, getValue());
}

default String getDisplayName(TextStyle style, Locale locale) {
return new DateTimeFormatterBuilder().appendText(ERA, style).toFormatter(locale).format(this);
}
}

   Like      Feedback     era  java.time.TemporalAccessor  java.time.TemporalAdjuster  java.time.chrono  default methods



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