From 3e8e6e730d10e075f3db2a5db38fb3330644bb8f Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 8 Aug 2026 15:58:28 +0800
Subject: [PATCH] =?UTF-8?q?s-day07-=20Stream=E6=B5=81=E4=B8=AD=E7=9A=84?=
 =?UTF-8?q?=E5=B8=B8=E7=94=A8=E6=96=B9=E6=B3=95=5Ffilter?=
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---
 .../src/com/inmind/stream07/FilterDemo15.java | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 s-day07/src/com/inmind/stream07/FilterDemo15.java

diff --git a/s-day07/src/com/inmind/stream07/FilterDemo15.java b/s-day07/src/com/inmind/stream07/FilterDemo15.java
new file mode 100644
index 0000000..76250f4
--- /dev/null
+++ b/s-day07/src/com/inmind/stream07/FilterDemo15.java
@@ -0,0 +1,24 @@
+package com.inmind.stream07;
+
+import java.util.stream.Stream;
+
+/*
+Stream流中的常用方法_filter
+Stream<T> filter(Predicate<? super T> predicate) 对指定的流进行过滤操作
+知识点回顾：
+    Predicate：接收一个参数，返回一个boolean的结果，用来进行数据筛选
+    抽象方法：boolean test(T t)    ---> t->{return ...}
+
+filter的执行原理：它会将stream流中的每个元素，作为以上Lambda表达式的参数，执行方法体，如果返回的是true，那就会把当前元素保存在新流中，如果是false，舍弃数据
+
+ */
+public class FilterDemo15 {
+    public static void main(String[] args) {
+        Stream<Integer> stream = Stream.of(1, 2, 3, 4, 5);
+        /*//只要获取大于3的整数，其他不要
+        Stream<Integer> newStream = stream.filter(i -> i > 3);
+        //看一下流中的数据
+        newStream.forEach(i-> System.out.println(i));*/
+        stream.filter(i->i>3).forEach(i-> System.out.println(i));
+    }
+}