From 1a273529c9c7cbf5f735631e4a2182995993e577 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 14 Mar 2026 11:21:32 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day06-Predicate=E7=9A=84or,ne?=
 =?UTF-8?q?gate=E6=96=B9=E6=B3=95?=
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---
 .../inmind/functional_interface02/Demo10.java | 31 +++++++++++++++++++
 .../inmind/functional_interface02/Demo11.java | 27 ++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 javaSE-day07/src/com/inmind/functional_interface02/Demo10.java
 create mode 100644 javaSE-day07/src/com/inmind/functional_interface02/Demo11.java

diff --git a/javaSE-day07/src/com/inmind/functional_interface02/Demo10.java b/javaSE-day07/src/com/inmind/functional_interface02/Demo10.java
new file mode 100644
index 0000000..52e1f40
--- /dev/null
+++ b/javaSE-day07/src/com/inmind/functional_interface02/Demo10.java
@@ -0,0 +1,31 @@
+package com.inmind.functional_interface02;
+
+import java.util.function.Predicate;/*
+Predicate的or方法
+
+需求：对一个字符串，使用2个predicate，判断它是否以h开头或者它的长度是否大于3
+
+boolean test(T)
+ */
+public class Demo10 {
+    public static void main(String[] args) {
+        method( s-> s.startsWith("h"),
+                (String s)->{return s.length() >3;},
+                "el");
+
+    }
+
+    //定义一个方法，接收2个判断条件predicate，1个要判断的字符串，没有返回值
+    public static void method(Predicate<String> predicate1, Predicate<String> predicate2, String str) {
+        /*boolean result1 = predicate1.test(str);
+        boolean result2 = predicate2.test(str);
+        boolean result = result1||result2;*/
+
+//        boolean result = predicate1.test(str)||predicate2.test(str);
+        Predicate<String> newPredicate = predicate1.or(predicate2);
+        boolean result = newPredicate.test(str);
+
+        System.out.println("最终结果："+result);
+    }
+
+}
\ No newline at end of file
diff --git a/javaSE-day07/src/com/inmind/functional_interface02/Demo11.java b/javaSE-day07/src/com/inmind/functional_interface02/Demo11.java
new file mode 100644
index 0000000..ee8396e
--- /dev/null
+++ b/javaSE-day07/src/com/inmind/functional_interface02/Demo11.java
@@ -0,0 +1,27 @@
+package com.inmind.functional_interface02;
+
+import java.util.function.Predicate;
+
+/*
+Predicate的negate方法
+
+需求：对一个字符串，使用1个predicate，判断它是否以h开头,结果取反
+
+boolean test(T)
+ */
+
+public class Demo11 {
+    public static void main(String[] args) {
+        method( s-> s.startsWith("h"),
+                "el");
+
+    }
+
+    //定义一个方法，接收2个判断条件predicate，1个要判断的字符串，没有返回值
+    public static void method(Predicate<String> predicate1,  String str) {
+
+        boolean result = predicate1.negate().test(str);
+        System.out.println("最终结果："+result);
+    }
+
+}
\ No newline at end of file