String str3 = "helloworld"; System.out.println(str3.substring(3)); System.out.println(str3.substring ...

String str5 = "293陕西力拓888"; System.out.println(str5.startsWith("293")); System.out.println(str5.ends ...

String str6 = "hello"; String str7 = "HELLO"; System.out.println(str6.equalsIgnoreCase(str7)); Syste ...

public class StringAPIDemo1 { public static void main(String[] args) { String str = "HELLO"; char c[ ...