[Java基础]Lambda表达式练习
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[Java基础]Lambda表达式练习
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代碼如下:
package LambdaPracticePack;public interface Eatable {void eat(); } package LambdaPracticePack;public class EatableImpl implements Eatable{@Overridepublic void eat() {System.out.println("一天一蘋果,醫(yī)生遠(yuǎn)離我");} } package LambdaPracticePack;public class EatableDemo {public static void main(String[] args){Eatable e = new EatableImpl();useEatable(e);useEatable(new Eatable() {@Overridepublic void eat() {System.out.println("一天一蘋果,醫(yī)生遠(yuǎn)離我");}});useEatable(()->{System.out.println("一天一蘋果,醫(yī)生遠(yuǎn)離我");});}private static void useEatable(Eatable e){e.eat();} }代碼如下:
package LambdaPracticePack;public class FlyableDemo {public static void main(String[] args){useLlyable(new Flyable() {@Overridepublic void fly(String s) {System.out.println(s);System.out.println("飛機(jī)自駕游");}});System.out.println("-----------------------------");useLlyable((String s)->{System.out.println(s);System.out.println("飛機(jī)自駕游");});}private static void useLlyable(Flyable f){f.fly("風(fēng)和日麗,晴空萬(wàn)里");} }代碼如下:
package LambdaPracticePack;public interface Addable {int add(int a,int b); } package LambdaPracticePack;public class AddableDemo {public static void main(String[] args){useAddable((int a,int b)->{return a+b;});}private static void useAddable(Addable a){int sum = a.add(10, 20);System.out.println(sum);}}總結(jié)
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