stringconstru.java

java课件及例程有一些PPT及一些例程

public class StringConstru{
    public static void main(String args[]){
        String s1 = new String();
        String s2 = new String("Hello, world!");
        byte[] b = {49,50,51,52};
        String s3 = new String(b);
        String s4 = new String(b,1,2); //从第二个字符开始的两个字符
        char c[]={'w','e','l','c','o','m','e'};
        String s5 = new String(c);
        String s6 = new String(c,3,4);
        String q="abkd"; 
	String w="abde";
	int result=w.compareTo(q);
	int o='b';
	int r1=w.indexOf(o);
	System.out.println(r1);
	System.out.println(o);
        System.out.println("s1="+s1+", s2="+s2);
        System.out.println("s3="+s3+", s4="+s4);
        System.out.println("s5="+s5+", s6="+s6);  
        System.out.println(result);       
    }
}