章节内容:类变量的调用方法
具体内容:学习使用
代码实现:
class CheakString{
public static void main(String[] args){
String str = "Nobaay ever went broke by buying IBM";
System.out.println("The string is :" + str);
System.out.println("Length of this string: " + str.length());
System.out.println("The character at position 5: " + str.charAt(5));
System.out.println("The substring from 26 to 32:" + str.substring(26, 32));
System.out.println("The index of the character v: " + str.indexOf('v'));
System.out.println("The index of the beginning of the " + "substring \"IBM\": " + str.indexOf("IBM"));
System.out.println("The string in upper case: " + str.toUpperCase());
}
}
结果: