public class TestDemo2 {
    public static void main(String[] args) {

        //public String():创建一个空白字符串对象，不含有任何内容
        String s1 = new String();
        System.out.println("s1:" + s1);

        //public String(char[] chs):根据字符数组内容，来创建字符串对象
        char[] chs = {'a','b'};
        String s2 = new String(chs);
        System.out.println("s2:" + s2);

        //public String(byte[] bys):根据字节数组的内容，来创建字符串对象
        byte[] bys = {97,98};
        String s3 = new String(bys);
        System.out.println("s3:" + s3);

        //String s = "abc": 直接赋值的方式来创建字符串对象，内容就是abc
        String s4 = "abc";
        System.out.println("s4:" + s4);

    }
}