From 5233c423949eba3c1f144ab6413860cdd6a26bbb Mon Sep 17 00:00:00 2001
From: liu-xianyu <1348870583@qq.com>
Date: Thu, 15 Apr 2021 23:21:06 +0800
Subject: [PATCH] first commit

---
 .../Demo.java"                                | 35 +++++++++++
 .../Demo03.java"                              | 61 +++++++++++++++++++
 .../Demo2.java"                               | 20 ++++++
 3 files changed, 116 insertions(+)
 create mode 100644 "\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo.java"
 create mode 100644 "\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo03.java"
 create mode 100644 "\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo2.java"

diff --git "a/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo.java" "b/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo.java"
new file mode 100644
index 0000000..ef8983f
--- /dev/null
+++ "b/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo.java"
@@ -0,0 +1,35 @@
+
+public class Demo {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		int a[]= {10,20,30,40,50};
+		System.out.print("[ ");
+		for (int i = 0; i < 2; i++) {
+			
+			System.out.print(+clss(a)[i]);
+			System.out.print(" ");
+		}
+		System.out.println("]");
+}
+	public static int[] clss(int[] a) {
+		int abc[]=new int [2];
+		int max=a[0];
+		int min=a[0];
+		for (int i = 0; i < a.length; i++) {
+			if (max<a[i]) {
+				max=a[i];
+			}
+		}
+		for (int i = 0; i < a.length; i++) {
+			if (min>a[i]) {
+				min=a[i];
+			}	
+	    }
+	abc[0]=max;	
+	abc[1]=min;
+   return abc;
+}
+}
+
+
diff --git "a/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo03.java" "b/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo03.java"
new file mode 100644
index 0000000..c7e342b
--- /dev/null
+++ "b/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo03.java"
@@ -0,0 +1,61 @@
+
+public class Demo03 {
+
+	public static void main(String[] args) {
+		// 无参数，无返回值
+//		sayHello();
+		
+		// 有参数，无返回值
+//		bigOrSmall(50,100);
+		
+		// 无参数，有返回值
+//		int result = getMax();
+//		System.out.println(getMax());
+		
+		//有参数，有返回值。
+		int r = getMax2(100,99);
+		System.out.println(r);
+		
+		
+	}
+	
+	// 无参数，无返回值
+	//实现的功能：专门用来给人打招呼的
+	public static void sayHello() {
+		System.out.println("你好，世界！");
+	}
+	
+	//有参数，无返回值
+	//比大小
+	public static void bigOrSmall(int num1,int num2) {
+		if(num1>num2) {
+			System.out.println("更大的数是："+num1);
+		}else {
+			System.out.println("更大的数是："+num2);
+		}
+	}
+	
+	//无参数，有返回值
+	//求5*6的和
+	public static int getMax() {
+		int a = 5;
+		int b = 6;
+		int sum = a + b;
+		return sum;
+	}
+	
+	//有参数，有返回值
+	//比大小，返回更大的值
+	public static int getMax2(int num1,int num2) {
+		int result;
+		
+		if(num1>num2) {
+			result=num1;
+		}else {
+			result=num2;
+		}
+		
+		return result;
+	}
+
+}
diff --git "a/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo2.java" "b/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo2.java"
new file mode 100644
index 0000000..466a5fa
--- /dev/null
+++ "b/\346\226\271\346\263\225\347\273\203\344\271\240/\345\210\230\346\261\211\346\226\207/Demo2.java"
@@ -0,0 +1,20 @@
+package lession.md.com;
+
+public class Demo02 {
+	/*需求：设计一个方法用于数组遍历，
+	 * 要求遍历的结果是打印输出在一行上的。例如：[11, 22, 33, 44, 55] 
+	 */
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+       int[] arr= new int [] {11, 22, 33, 44, 55};
+       bianli(arr);
+	}
+    public static  int bianli(int [] arr) {
+    	for (int i = 0; i < arr.length; i++) {
+			System.out.println("值是"+ arr[i]);
+		}
+		return 0;
+    	
+    	
+    }
+}
-- 
Gitee