define interface in java code example
Example 1: Interface in java
interface Vehicle
{
public void accelerate();
}
class BMW implements Vehicle
{
public void accelerate()
{
System.out.println("BMW accelerating...");
}
}
public class InterfaceDemo
{
public static void main(String[] args)
{
BMW obj = new BMW();
obj.accelerate();
}
}
Example 2: how to implement a interface in java
interface methods{
public static hey();
}
class scratch implements methods{
public static hey(){
System.out.println("Hey");
}
}
Example 3: Interface in java
interface InterfaceName
{
fields
methods
}
Example 4: why we use interface in java
interface Animal {
void child();
}
class Cat implements Animal {
public void child() {
System.out.println("kitten");
}
}
class Dog implements Animal {
public void child() {
System.out.println("puppy");
}
}
public class LooseCoupling{
public static void main(String args[]) {
Animal obj = new Cat();
obj.child();
}
}
Example 5: java interface
public interface Exampleinterface {
public void menthod1();
public int method2();
}
class ExampleInterfaceImpl implements ExampleInterface {
public void method1()
{
}
public int method2()
{
}
}
Example 6: how to declare a interface in java
interface Appendable {
void append(string content);
}
class SimplePrinter implements Appendable {
public void append(string content) {
System.out.println(content);
}
}
class FileWriter implements Appendable {
public void append(string content) {
}
}
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how to implement a interface in java