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10.2日报

今天学习并运行了如下程序:

import java.util.*;
public class InputTest {
 public static void main(String[] args) {
  // TODO 自动生成的方法存根
  Scanner in = new Scanner(System.in);
       // get first input
       System.out.print("What is your name? ");
       String name = in.nextLine();
       // get second input
       System.out.print("How old are you? ");
       int age = in.nextInt();
      
      
     /* int i;
      String value="100";
      i=Integer.parseInt(value);
      i=200;
      String s=String.valueOf(i);*/
     
       // display output on console
       System.out.println("Hello, " + name + ". Next year, you'll be " + (age + 1));
 }
}
 
程序运行结果是:
What is your name? chendongliang
How old are you? 21
Hello, chendongliang. Next year, you'll be 22
 
如下程序:

public class RandomStr {
 public static void main(String[] args) {
  // TODO 自动生成的方法存根
  //定义一个空字符串
    String result = "";
    //进行6次循环
    for(int i = 0 ; i < 6 ; i ++)
    {
     //生成一个97~122的int型的整数
     int intVal = (int)(Math.random() * 26 + 97);
     //将intValue强制转换为char后连接到result后面
     result = result + (char)intVal;
    }
    //输出随机字符串
    System.out.println(result);
 }
}
 
程序运行结果:
lhihnb
posted @ 2020-10-02 22:42  小陈的太阳  阅读(109)  评论(0编辑  收藏  举报