Merge branch 'master' of https://github.com/crazyxia/Java4_JavaBase.git

crazy · crazy · commit 3f49e57ead44 · 2017-05-04T20:36:27.000+08:00
diff --git a/JavaBase/src/com/xinan/exception/Exception01.java b/JavaBase/src/com/xinan/exception/Exception01.java
@@ -15,7 +15,7 @@ public static void main(String[] args) {
 			ae.printStackTrace();
 			System.out.println("ArithmeticException被捕获");
 		} catch (InputMismatchException ime) {
-			ime.printStackTrace();
+			//ime.printStackTrace();
 			//System.out.println(ime.getMessage());
 			//System.out.println("InputMismatchException被捕获");
 		} catch (Exception e) {
diff --git a/JavaBase/src/com/xinan/regex/RegexDemo01.java b/JavaBase/src/com/xinan/regex/RegexDemo01.java
@@ -0,0 +1,26 @@
+package com.xinan.regex;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class RegexDemo01 {
+
+	public static void main(String[] args) {
+		/*
+		 * // TODO Auto-generated method stub String content
+		 * ="i am noob"+"from runoo0b.com."; String pattern=".*runoob.*";
+		 * boolean isMatch=Pattern.matches(pattern, content);
+		 * System.out.println(isMatch);
+		 */
+		/*String str = "service@crazyjava.net";
+		String regEx = "^[a-zA-Z_]{1,}[0-9]{0,}@(([a-zA-z0-9]-*){1,}\\.){1,3}[a-zA-z\\-]{1,}$ ";// 此处写匹配规则
+	*/	Pattern p = Pattern.compile("\\d{4}");
+		Matcher m = p.matcher("hello235216asdasdas48512");
+		/*System.out.println(m.matches());// 匹配所有
+		System.out.println(m.find());// 匹配所有
+	*/	while(m.find()){
+			System.out.println(m.group());
+		}
+	}
+
+}
diff --git a/JavaBase/src/com/xinan/string01/StringDemo01.java b/JavaBase/src/com/xinan/string01/StringDemo01.java
@@ -0,0 +1,26 @@
+package com.xinan.string01;
+
+public class StringDemo01 {
+	public static void main(String[] args) {
+		String fileNames = "abc.java;hello.will.txt;hello.java;hello.class";
+		/*
+		 * String s1 = new String("abcd");
+		 * 
+		 * System.out.println(s == s1); System.out.println(s.trim());
+		 * System.out.println(s.replace('a', 'b'));
+		 * System.out.println(s.indexOf('b')); System.out.println(s.length());
+		 * 
+		 * System.out.println(s.charAt(5)); System.out.println(s.isEmpty());
+		 * System.out.println(s.indexOf('a'));
+		 */
+		String[] names = fileNames.split(";");
+		for (String name : names) {
+			if (name.startsWith("hello")) {
+				int index = name.lastIndexOf(".");
+				String newName = name.substring(index);
+				System.out.println(newName);
+			}
+		}
+	}
+
+}
