Java中的字符串修改

Question

Hi i am having string like " MOTOR PRIVATE CAR-PACKAGE POLICY " . Now i want remove last two words and add hyphen between words finally i want string like " MOTOR-PRIVATE-CAR' . I tried many times using string methods in java but could not find exactly. Can anyone give a solution for that . Give me a code is plus for me.

Thanks in advance

public class StringModify {

public static void main(String[] args) {

    try {
    String value="MOTOR PRIVATE CAR-PACKAGE POLICY";
    System.out.println("Value-------------------->"+value.replaceFirst("\\s*\\w+\\s+\\w+$", ""));
    } catch (Exception e) {     
        e.printStackTrace();
    }
  }
}

Answer 1

You can do it with the help of substring() and replaceAll() methods

String value="MOTOR PRIVATE CAR-PACKAGE POLICY";
value = value.substring(0, value.indexOf("-")); //get the string till -
value = value.replaceAll("\\s", "-"); //replace all the space chars with -
System.out.println(value);

I have used String.replaceAll() instead of String.replace() to use the regex for white space

\\s stands for white space character and and while adding it as regex , we need to escape it with an extra \\ so --> \\\\s

indexOf("-") method returns the index of first occurrence of the String passed, which should be the 2nd parameter to substring method, which is the endIndex

Answer 2

You can do it in two steps:

1. To get all the words from the string before "-", you can use String substring and indexOf methods.
2. To replace empty spaces with hiphen(-), you can use the String replace method.

Here is the code:

String value="MOTOR PRIVATE CAR-PACKAGE POLICY";
value = value.substring(0,value.indexOf("-")); // get the words before "-"
value = value.replace(" ", "-"); // replace space with hiphen
System.out.println(value);

Answer 3

public class StringModify {

/**
* @param args
*/
public static void main(String[] args) {

   try {
   String value="MOTOR PRIVATE CAR-PACKAGE POLICY";
   System.out.println("Value-------------------->"+value.replaceFirst("\\s*\\w+\\s+\\w+$", ""));

   value = value.substring(0,value.indexOf("-")); // get the words before "-"
   value = value.replace(" ", "-"); // replace space with hiphen
   System.out.println(value);
} catch (Exception e) {

   e.printStackTrace();
}


}

}

Answer 4

You can split the string with '-' which gives you the part of the string in which you need to insert ' ' . Split the string again with ' ' and insert '-' b/w the words.

String value="MOTOR PRIVATE CAR-PACKAGE POLICY";
String[] phrase = value.split("-");
String[] words = phrase[0].split(" ");

String newValue;
for(int i = 0; i < words.length; i++)
  newValue += words[i] + "-";

Answer 5

String var = "/"; String query = "INSERT INTO Recieptnumbersetup VALUES('"+Prestring+"' '"+var+"','"+var+"' '"+post string+"')" ;

PS = connection.PrepareStatement(query);

Use this i have used slash over here i was having same problem.