diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.classpath" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.classpath"
new file mode 100644
index 0000000000000000000000000000000000000000..51a8bbad89682d379e0aadb7bd54d22de601a62f
--- /dev/null
+++ "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.classpath"
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.project" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.project"
new file mode 100644
index 0000000000000000000000000000000000000000..c00a77aadecf9aa83fd7eca29ca99d3a435c6e71
--- /dev/null
+++ "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.project"
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Xzr2</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.settings/org.eclipse.jdt.core.prefs" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.settings/org.eclipse.jdt.core.prefs"
new file mode 100644
index 0000000000000000000000000000000000000000..3a21537071bf4118b9e1ee864cb4bc258aa48211
--- /dev/null
+++ "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/.settings/org.eclipse.jdt.core.prefs"
@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzir.class" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzir.class"
new file mode 100644
index 0000000000000000000000000000000000000000..95f7762da185122884cc256f7669f2ab47fb1b64
Binary files /dev/null and "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzir.class" differ
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzr1.class" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzr1.class"
new file mode 100644
index 0000000000000000000000000000000000000000..e982cfbcaddff4438aca2145d653bb00111d3130
Binary files /dev/null and "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzr1.class" differ
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzr2.class" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzr2.class"
new file mode 100644
index 0000000000000000000000000000000000000000..53e7880998ac133de6e1208d5b16d1d57466b22f
Binary files /dev/null and "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/bin/com/md/lessiona/Xzr2.class" differ
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzir.java" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzir.java"
new file mode 100644
index 0000000000000000000000000000000000000000..a7f75640199489a070d3c98f0165ffa44d8dc206
--- /dev/null
+++ "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzir.java"
@@ -0,0 +1,29 @@
+package com.md.lessiona;
+
+import java.util.Scanner;
+
+public class Xzir {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		int num1;
+		int num2;
+		int temp;
+		
+		Scanner scan = new Scanner(System.in);
+		System.out.println("请输入第一个数字");
+		num1 = scan.nextInt();
+		System.out.println("请输入第二个数字");
+		num2 = scan.nextInt();
+		System.out.println("第一个数字是：" +num1);
+		System.out.println("第二个数字是：" +num2);
+		temp = num1;
+		num1 = num2;
+		num2 = temp;
+		System.out.println("互换后的数字分别是：");
+		System.out.println("第一个数字是：" +num1);
+		System.out.println("第二个数字是：" +num2);
+		
+	}
+
+}
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzr1.java" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzr1.java"
new file mode 100644
index 0000000000000000000000000000000000000000..c9543e8282a676b8c6808265ed6a79766a15e4f8
--- /dev/null
+++ "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzr1.java"
@@ -0,0 +1,25 @@
+package com.md.lessiona;
+
+import java.util.Scanner;
+
+public class Xzr1 {
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		int one;
+		float two;
+		double three;
+		double sum;
+		Scanner scan = new Scanner(System.in);
+		System.out.println("请输入第一个值：");
+		one= scan.nextInt();
+		System.out.println("请输入第二个值：");
+		two = scan.nextFloat();
+		System.out.println("请输入第三个值：");
+		three = scan.nextDouble();	
+		sum= (one + two + three);
+		System.out.println("Sum的和：" + sum);
+		
+
+	}
+
+}
diff --git "a/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzr2.java" "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzr2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..23ed55704884a4b948a7c6eea2b4380211b294de
--- /dev/null
+++ "b/Java\347\254\254\344\270\211\346\254\241\344\275\234\344\270\232/\350\256\270\350\207\252\346\246\225/Xzr2/src/com/md/lessiona/Xzr2.java"
@@ -0,0 +1,26 @@
+package com.md.lessiona;
+
+import java.util.Scanner;
+
+public class Xzr2 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		int num1;
+		float num2;
+		byte num3;
+		double num4;
+		double sum;
+		Scanner scan = new Scanner(System.in);
+		System.out.println("请输入一个double数值：");
+		num4 = scan.nextDouble();
+		num1= (int)num4;
+		num2=(float)num4;
+		num3=(byte)num4;
+		sum = num1 + num2 + num3 ;
+		System.out.println("强制转换的值为："+sum);
+		
+		
+	}
+
+}