Java字符串处理

http://blog.csdn.net/pipisorry/article/details/43303145

java判断字符串包含某个字符段

1. 用indexOf()方法

     String str = "1234567";

     if(str.indexOf("23") != -1) {
     System.out.println("包含该字符串");

     }

    public void test1() {

        String string = "good morning everyone";
        String sub = "morning";
        int a = string.indexOf(sub);

        if (a >= 0) {
            System.out.println("morning在字符串中的位置:" + a);
            String ss1 = string.substring(0, a + sub.length());
            String ss2 = string.substring(a + sub.length(), string.length());
            System.out.println("你需要的结果是:" + ss1);
            System.out.println("删掉的字符是:" + ss2);
        } else {
            System.out.println("不存在");
        }
    }

2. 用repalce()方法

public class Test {
  public static void main(String[] args) {

   String s1 = "abc";
   String s2 = "1111abcdefe"; 

   if(s2.contains(s1)){
    System.out.println("s2包含了s1");    //删掉s1
    s2 = s2.replace(s2.substring(s2.indexOf(s1), s2.length()), "");
    System.out.println(s2);
   }else{
    System.out.println("s2不包含s1");
   }
  }
}

from:http://blog.csdn.net/pipisorry/article/details/43303145

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