Java示例字符串区域匹配 Java示例转换为大写 Java示例比较性能 Java示例字符串区域匹配 public class StringRegionMatch { public static void main(String[] args) { String first_str = "Welcome to Microsoft"; String second_str = "I work with Microsoft"; boolean match = first_str.regionMatches(11, second_str, 12, 9); System.out.println("first_str[11 -19] == " + "second_str[12 - 21]:-"+ match); } } Java示例转换为大写 Java示例比较性能