1)使用一个新的Scanner对象获取String. Scanner sc =newScanner(System.in); System.out.println("输入int类型");inta =sc.nextInt(); Scanner sc2=newScanner(System.in); System.out.println("输入String类型"); String s=sc2.nextLine(); System.out.println(a); System.out.println(s); System.out....
1)使用一个新的Scanner对象获取String. Scanner sc =newScanner(System.in); System.out.println("输入int类型");inta =sc.nextInt(); Scanner sc2=newScanner(System.in); System.out.println("输入String类型"); String s=sc2.nextLine(); System.out.println(a); System.out.println(s); System.out....
import java.util.Scanner; public class Test1 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.hasNext()) { int n = sc.nextInt();//输入一个字符串数组长度为n String[] str = new String[n]; for (int i = 0; i < n; i++) {//字符串...
import java.util.Scanner; publicclassMain{ publicstaticvoidmain(String[] args){ Scanner scanner = new Scanner(System.in); // 创建一个 Scanner 对象来读取标准输入 System.out.println("请输入一个整数:"); if (scanner.hasNextInt()) { // 检查下一个输入是否是整数 int num = scanner...
Scanner对象的nextInt()方法是用来读取下一个整数输入的。它会等待用户输入一个整数,并将其作为方法的返回值返回。如果用户输入的不是一个有效的整数,nextInt()方法会抛出Input...
Scannersc=newScanner(file); intcount=0; while(true) { intt=sc.nextInt(); /* the error maybe triggered in here :*/ sc.nextLine(); /*if we put the sc.nextLine() out of the if judge,then the the code will throw error * due to the:java.util.NoSuchElementException: No line found...
publicstaticvoidmain(String[] args){ inttemperature =30; if(temperature >25) {// 条件表达式: temperature > 25 System.out.println("It's a hot day!");// 当temperature > 25时执行 } // 如果temperature <= 25,则...
public static void main(String[] args) { try{ int num = 0;Scanner input = new Scanner(System.in);System.out.print("Num: ");num = input.nextInt();} catch (InputMismatchException e){ System.out.print("对不起输入错误,请重试");//出错提示 System.exit(-1);//不知道怎么返回...
Scanner scanner = new Scanner(System.in)if(scanner.hasNetInt){ //INT 类型 判断 int line 要看清楚int s=scanner.nextInt(); int类型 返回值 赋值}作用解释1、next()方法在遇到有效字符前所遇到的空格、tab键、enter键都不能当作结束符，next()方法会自动将其去掉，只有当next()...
@PostMapping("/InsecureDeserialization/task") @ResponseBody public AttackResultcompleted(@RequestParam String token) throws IOException { String b64token; long before, after; int delay; b64token =token.replace('-', '+').replace('_', '/'); try (ObjectInputStreamois = new ObjectInputStream(new...