length; // Loop through the elements of the array for (int age : ages) { sum += age; } // Calculate the average by dividing the sum by the length avg = sum / length; // Print the average System.out.println("The average age is: " + avg); Try it Yourself » ...
String[]names={"Alice","Bob","Carol"};Stream<String>stream=Arrays.stream(names); 通过Stream.of() 创建:我们可以使用Stream.of()方法直接将一组元素转换为 Stream 对象。例如: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Stream<Integer>stream=Stream.of(1,2,3,4,5); 通过Stream.builder()...
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int average = sum / 10; int count = 0; for ( int i = 0; i < arr.length; i++) { if (arr[i] < average) { count++; } } System.out.println("所有数据的和为:" + sum); System.out.println("所有数据的平均数为:" + average); System.out.println(count + "个数比平均数小");...
生成stream流:这就就是将输入的数据源转成Stream流,数据源主要是Collection、Array等集合数据。 执行中间操作:对数据进行处理 执行终止操作:返回最终的结果 生成Stream流 生成Stream流的方式有三种,分别是 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
int[] array={1,3,5,6,8};IntStream stream = Arrays.stream(array);3、使用Stream的静态方法：of()、iterate()、generate()Stream<Integer> stream = Stream.of(1, 2, 3, 4, 5, 6);Stream<Integer> stream2 = Stream.iterate(0, (x) -> x + 3).limit(4);stream2.forEach(System.out::...
System.arraycopy(bs,0, newStrByte, tL, rSize); }// 获取开始位置之后的第一个换行符intendIndex=indexOf(newStrByte,0);if(endIndex != -1) {returnstartNum + endIndex; } tempBs = substring(newStrByte,0, newStrByte.length); startNum +=1024; ...
1public static<T> Stream<T> of(T t)2public static<T> Stream<T> of(T... values)3 2.2 通过数组构建流 通过Arrays.stream构建流,其声明如下: Arrays#stream 1public static <T> Stream<T> stream(T[] array)2 2.3 通过文件流 可以通过文件流创建流,在java.nio.file.Files类中定义了如下创建流的...
终端操作,每个流只能进行一次终端操作,终端操作结束后流无法再次使用。终端操作会产生一个新的集合或值。(遍历foreach、匹配find–match、规约reduce、聚合max–min–count、收集collect) 另外,Stream有几个特性: stream不存储数据,而是按照特定的规则对数据进行计算,一般会输出结果。
So, for example, you could sum the values prior to dividing by the number of elements in the stream to obtain an average age. Given the new APIs, it’s easiest to just use the built-in methods, as shown in Listing 19.Listing 19Copy Copied to Clipboard Error: Could not Copy int sum...