checkstring.java

java对象 创建新对象访问和设置类变量和实例变量 对象引用

class CheckString {
 
    public static void main(String[] arguments) {
        String str = "Nobody 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());
    }
}