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使用JAvA编写一个程序,使其从键盘上读取三个整数...

import java.util.Scanner; public class Demo1 { public static void main(String[] args){ Scanner scanner = new Scanner(System.in); int number = 0; int sum = 0; System.out.println("输入一个数,按回车输入下一个数:"); for(int i=0;i

import java.util.Scanner; public class Test { public static void main(String[] args) { System.out.print("请输入第一个整数:"); Scanner s=new Scanner(System.in); int a=s.nextInt(); System.out.print("请输入第二个整数:"); int b=s...

import java.util.Scanner; public class Fangfa2 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int a,b,c; System.out.println("请录入第一个数字"); a = sc.nextInt(); System.out.println("请录入第二...

public class Main{public static void main(String[] args) {System.out.println("请输入整数:");Scanner sc=new Scanner(System.in);String input = sc.nextLine();//读取输入字符try{int i = Integer.parseInt(input);//string转intString re...

代码如下: import java.util.Scanner; public class Test { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner sc = new Scanner(System.in); System.out.println("请输入一个数:")...

直接转换成整数,就可以完成取整,具体代码如下: import java.util.Scanner; public class App12 { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); float f = scanner.nextFloat(); // 取整数部分 int r...

import java.util.Scanner; public class Test43 { public static void main(String[] args) { System.out.println("请输入10个数字,输入每个数字后以回车结束");// 提示语句,输入一个数要按下回车 Scanner sc = new Scanner(System.in);// 这是...

import java.util.Scanner; public class Multi { public static void main(String[] args) { Scanner read = new Scanner(System.in); long mul=1; long a; a= read.nextInt(); while (a!=0) { mul=mul*a; a=read.nextInt(); } System.out.prin...

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Getint { public static void main(String[] args){ BufferedReader distream = new BufferedReader(new InputStreamReader(Syste...

public static void main(String[] args){ System.out.println("输入n,按回车:"); Scanner s = new Scanner(System.in); Integer n = Integer.parseInt(s.next()); Integer re = factorial(1, n); System.out.println(re); } public static In...

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