string5.java

来自「java程序设计 清华出版社 孙燮华老师编写的程序源代码」· Java 代码 · 共 18 行

//String5.java
public class String5 {
  public static void main(String args[]){
    double dbl = 3.456;
    char[ ] js = {'J', 'a', 'v', 'a'};
    boolean bln = true;
    
    //将double型值转换成字符串
    System.out.println("dbl = " + dbl + ", String.valueOf(dbl) = " + String.valueOf(dbl));
    //将字符数组js转换成字符串
    System.out.println("String.valueOf(js) = " + String.valueOf(js));
    //将字符数组js下标为2起的2个字符转换成字符串
    System.out.println("String.valueOf(js, 2, 2) = " + String.valueOf(js, 2, 2));
    //将布尔值转换成字符串
    System.out.println("bln = " + bln + ", String.valueOf(bln) = " + String.valueOf(bln));
  }
}