/**

* @Copyright (c) all right reserved

*

* @File : StringCommonMethods.java

* @Date : 2019-08-07 22:55:52

* @Author : Sophistt

* @Desc : Java file

*/

public class StringCommonMethods {

public static void main(String [] args) {

// ------------------------------ Search --------------------------------------

String strA = "Hello world";

// public boolen contains(String s)

System.out.println(strA.contains("wang"));

// public int indexOf(String str(, int fromIndex))

System.out.println(strA.indexOf("world"));

System.out.println(strA.indexOf("wang"));

// public int lastIndexOf(String str(, int fromIndex))

System.out.println(strA.lastIndexOf("world"));

// public boolen startsWith(String str(, int index))

System.out.println(strA.startsWith("hello"));

// public boolen endsWith(String str(, int index))

System.out.println(strA.endsWith("ld"));

// ----------------------------- Substitute -----------------------------------

// public String replaceAll(String regex, String replacement)

System.out.println(strA.replaceAll("l", "x"));

// public String replaceAll(String regex, String replacement)

System.out.println(strA.replaceFirst("l", "x"));

// ----------------------------- Split -----------------------------------

// public String [] split

String strB = "192.168.1.1";

String result [] = strB.split("\\.");

for (int i = 0; i < result.length; i++ ) {

System.out.println(result[i]);

}

// ----------------------------- SubString -----------------------------------

// pulic String substring(int beginIndex(, int endIndex))

String strC = "Sophistt-image-kent.jpg";

int beginIndex = strC.indexOf("-", strC.indexOf("image")) + 1;

int endIndex = strC.indexOf(".");

System.out.println(strC.substring(beginIndex, endIndex));

// ----------------------------- String format -----------------------------------

String name = "kent";

int age = 18;

double score = 98.765432;

System.out.println(String.format("Name: %s, Age: %d, Score: %5.2f", name, age, score));

}

}