手机飞信学习

int[] intArray = new int[] {4, 1, 3, -23};  int[] i;   i = new int[2]{};    for(int i=1;ia[max]) max= i; return a[max];init（）show()getMax()

 

import java.util.*;
public class useScanner{
  public static void main(String argv[]){
     Scanner in = new Scanner(System.in);
     System.out.print("请输入你的姓名：");
     String name = in.nextLine();
     System.out.print("请输入你的年龄：");
     int age = in.nextInt();
     System.out.print("请输入你的身高（单位：米）：");
     double height = in.nextDouble();
     System.out.println("姓名："+name+" 年龄："+age+" 身高："+height+"米");
  }
}

 

 

public class fileOut {
public static void main (String argv[]){
FileInputStream fin;
FileOutputStream fout;
int ch;
try{
fin = new FileInputStream(FileDescriptor.in);
fout =  new FileOutputStream("I:/out.txt");
System.out.println("请输入一行字符");
while ((ch =fin.read())!='/n')
     fout.write(ch);
fin.close();
fout.close();
System.out.println("文件写入成功！");
}catch (FileNotFoundException e){
  System.out.println("不能创建文件");
}catch(IOException e){
   System.out.println("输入流有误！");
}
}
}

 

 

public class getMaxElem {
     public static void main (String argv[]){
     int ar[]= new int[10];
     init(ar);
     show(ar);
     System.out.println("/n最大值为："+getMax(ar)); 
}
       public static void init(int a[]){
         for(int i=0;i             a[i]= (int)(Math.random()*1000);
       }
       public static  int getMax(int a[]){
          int max= 0;
          for(int i=1;i              if(a[i]>a[max]) max= i;
           return a[max];
       }
     public static void show(int a[]){
        System.out.println("数组序列为：");
        for (int i= 0;i            System.out.print("  "+a[i]);
      }
     }

 

 

public class fileOut {
public static void main (String argv[]){
FileInputStream fin;
FileOutputStream fout;
int ch;
try{
fin = new FileInputStream(FileDescriptor.in);
fout =  new FileOutputStream("I:/out.txt");
System.out.println("请输入一行字符");
while ((ch =fin.read())!='/n')
     fout.write(ch);
fin.close();
fout.close();
System.out.println("文件写入成功！");
}catch (FileNotFoundException e){
  System.out.println("不能创建文件");
}catch(IOException e){
   System.out.println("输入流有误！");
}
}