求一个函数,怎么删除字符串中的字符串？

Question

string.replaceAll(String, String);

Answer 1

String str = "abcde";
System.out.println(str.replaceAll("ab", ""));

Answer 2

public String deleteString(String str1, String str2) {   
String resultString = null;                                 
if(str1 != null && str2 != null) {                 
while(str1.indexOf(str2) != -1) {                       
int index = str1.indexOf(str2);                     
int str2Length = str2.length();                     
if(resultString == null) {                          
resultString = "";                              
}                                                   
resultString += str1.substring(0, index );          
str1 = str1.substring(index + str2Length);          
}                                                       
if(resultString == null) {                              
resultString = "";                                  
}                                                       
resultString += str1;                                   
                                                        
}                                                           
return resultString;                                        
}                                                               

Answer 3

方法好多....
多点看String的API吧...java的基础问题