day08--String类的练习
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day08/src/com/inmind/string01/Demo07.java
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25
day08/src/com/inmind/string01/Demo07.java
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package com.inmind.string01;
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/*
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常用类_String的分割方法_split
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public String[] split(String regex) :将此字符串按照给定的regex(规则)拆分为字符串数组
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*/
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public class Demo07 {
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public static void main(String[] args) {
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//定义一个字符串
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String str = "1,22,张三";
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//按,切割,获取对应的属性值; 注意:按什么分割,该字符串就不会出现
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String[] values = str.split(",");
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System.out.println(values);
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for (int i = 0; i < values.length; i++) {
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System.out.println(values[i]);
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}
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//扩展:将字符串转为学生对象!!
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String str1 = "2,21,李四";
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String[] strings = str1.split(",");
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Student s = new Student(Integer.parseInt(strings[0]), Integer.parseInt(strings[1]), strings[2]);
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System.out.println(s.getId());
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System.out.println(s.getAge());
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System.out.println(s.getName());
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}
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}
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day08/src/com/inmind/string01/Test08.java
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day08/src/com/inmind/string01/Test08.java
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package com.inmind.string01;
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/*
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常用类_String的练习_拼接字符串
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定义一个方法,把数组{1,2,3}按照指定个格式拼接成一个字符串。格式参照如下:[值1#值2#值3]。
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*/
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public class Test08 {
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}
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day08/src/com/inmind/string01/Test09.java
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day08/src/com/inmind/string01/Test09.java
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package com.inmind.string01;
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/*
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8.常用类_String的练习_统计字符个数
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键盘录入一个字符串,统计字符串中大小写字母及数字字符个数
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*/
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public class Test09 {
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}
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