java实战编程小例子

java实战编程:

你好世界,

public class HelloWorld

{

public static void main(String []args)

{

System.out.println("hello! world");

}

}


三个数比大小,java初试


import java.util.Scanner;

public class Max

{

public static void main(String []args)

{

Scanner sc= new Scanner(System.in);

System.out.println("please input the first int num");

int num1=sc.nextInt();

System.out.println("please input the second int num");

int num2=sc.nextInt();

System.out.println("please input the three int num");

int num3=sc.nextInt();

int max=num1;

if(max<num2)

{

max=num2;

}

if(max<num3)

{

max=num3;

}

System.out.println("max("+num1+","+num2+","+num3+")"+"="+max);

 


9*9 乘法表  java乘法表

public class multtable

{

public static void main (String []args)

{

for(int i=1;i<=9;i++)

{

for(int j=1;j<=i;j++)

{

System.out.print(j+"*"+i+"="+j*i+" ");

}

System.out.println();

}

}

}


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