如何使用流和 lambdas 从 int[] 数组打印和 select 数字

Question

我的目标是从数组中读取 select 数字，然后取出大于 0 的数字并打印出来这是我的代码示例：

public class LambdaTest {
    private int[] num = new int[10];

    public static void main(String[] args) {
        LambdaTest test = new LambdaTest();
        //Lista de números a ordenar
        test.num[0] = 5;
        test.num[1] = -6;
        test.num[2] = 7;
        test.num[3] = 23;
        test.num[4] = -1;
        test.num[5] = 55;
        test.num[6] = 78;
        test.num[7] = 45;
        test.num[8] = 31;
        test.num[9] = -67;
        //Proceso normal
        for (int i=0; i<test.num.length; i++){
            if (test.num[i]>=0){
                System.out.println(test.num[i]);
            }
        }
    }
}

但是对于 lambda 表达式和流，提前致谢

Answer 1

你可以

Arrays.stream(test.num).filter(n -> n >= 0).forEach(System.out::println);

如何使用流和 lambdas 从 int[] 数组打印和 select 数字

How do I print and select numbers from an int[] array with streams and lambdas

java

arrays

lambda

integer