StringDemo
package cn.zuoye;
/*
* string类的其他功能
*
* 替换功能
* string replace (char old ,char new)
* string replace (string old,string new)
*
* 去除字符串两个空格(两边)
* string trim()
*
* 按字典顺序比较两个字符串
* int compareTo(String str)
* int compareToIgnoreCase(String str)
*/
public class StringDemo {
public static void main(String[] args) {
// 替换功能
String s1 = "helloworld";
String s2 = s1.replace('l', 'k');
System.out.println("s1:"+s1);//s1:helloworld
System.out.println("s2:"+s2);//s2:hekkoworkd
//去除字符串两空格
String s3 = " hello world ";
String s4 = s3.trim();
System.out.println("s3:"+s3+"++++");//s3: hello world ++++
System.out.println("s4:"+s4+"++++");//s4:hello world++++
* string类的其他功能
*
* 替换功能
* string replace (char old ,char new)
* string replace (string old,string new)
*
* 去除字符串两个空格(两边)
* string trim()
*
* 按字典顺序比较两个字符串
* int compareTo(String str)
* int compareToIgnoreCase(String str)
*/
public class StringDemo {
public static void main(String[] args) {
// 替换功能
String s1 = "helloworld";
String s2 = s1.replace('l', 'k');
System.out.println("s1:"+s1);//s1:helloworld
System.out.println("s2:"+s2);//s2:hekkoworkd
//去除字符串两空格
String s3 = " hello world ";
String s4 = s3.trim();
System.out.println("s3:"+s3+"++++");//s3: hello world ++++
System.out.println("s4:"+s4+"++++");//s4:hello world++++
//按字典顺序比较两个字符串
String s5 = "hello";
String s6 = "hello";
String s7 = "abc";
String s8 = "xyz";
System.out.println(s5.compareTo(s6));//0
System.out.println(s5.compareTo(s7));//7
System.out.println(s5.compareTo(s8));//-16
}
}