stringmethods.java

有关java编程的课件及附上有关的源代码

/** 这个类演示字符串不同方法的用法
 */

package SG6.Example6;

public class StringMethods {

    /**构造方法 */

    protected StringMethods() {
    }

    /** 这是 main 方法
     *   它演示 String 类的不同方法
     *    @param args 传递至 main 方法的参数
     */


    public static void main(String [] args) {

        String s = "Java is a " + "platform independent language";
        String s1 = "Hello world";
        String s2 = "Hello";
        String s3 = "HELLO";
        System.out.println(s);
        System.out.println("index of t = " + s.indexOf('t'));
        System.out.println("last index of t = " + s.lastIndexOf('t'));
        System.out.println("index of(t, 10) = " + s.indexOf('t', 10));
        System.out.println("last index of (t, 60) = " + s.lastIndexOf('t', 60));
        System.out.println(s1.substring(6));
        System.out.println(s1.substring(3, 8));
        System.out.println(s2.concat("World"));
        System.out.println(s2.replace('l', 'w'));
        System.out.println(s3.toLowerCase());
        System.out.println(s1.trim());
    }
}