string1.java

java程序设计 清华出版社 孙燮华老师编写的程序源代码

//String1.java
import java.io.*;

public class String1{
  public static void main(String[] args){
    char charArray[]={'b', 'i', 'r', 't', 'h', ' ', 'd', 'a', 'y'};
    byte byteArray[]={-61, -26, -49, -14, -74, -44, -49, -13};
    StringBuffer buffer;
    String s, s1, s2, s3, s4, s5, s6, s7;
    s=new String("hello");     //用字符串创建一个新的字符串对象S
                               //创建字符串变量buffer 
    buffer = new StringBuffer("Welcome to java programming!");
    s1=new String();           //创建一个空字符串对象
    s2=new String(s);          //用串对象s创建新的字符串对象s2
    s3=new String(charArray);  //用字符数组创建字符串对象s3
    s4=new String(charArray,6,3); //从下标为6的元素开始取3个创建对象s4
    s5=new String(byteArray);     //用数组byteArray按缺省的字符编码方案创建s5
    s6=new String(byteArray,2,4); //从下标为2的元素开始，取4个创建s6
    s7=new String(buffer);        //用字符串变量buffer构造新对象s7
    System.out.println("s1 = " + s1); System.out.println("s2 = " + s2); 
    System.out.println("s3 = " + s3); System.out.println("s4 = " + s4); 
    System.out.println("s5 = " + s5); System.out.println("s6 = " + s6); 
    System.out.println("s7 = " + s7); 
  }
}