1、確定輸入行數
// 示例1:
// 輸入:
// 9
// cap
// to
// cat
// card
// two
// too
// up
// boat
// boot
// 輸出:
// boat
// boot
// cap
// card
// cat
// to
// too
// two
// up
import java.util.*;
public class Test14 {
public static void main(String[] args) {
System.out.println("please input:");
Scanner in = new Scanner(System.in);
int num = in.nextInt();
List<String> stringList = new ArrayList<>();
for(int i = 0; i<= num; i++){
stringList.add(in.nextLine());
}
stringList.remove(0);
Collections.sort(stringList);
for(String s : stringList){
System.out.println(s);
}
}
}
2、不確定輸入行數
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
inputStr();
inputInteger();
inputIntInLine();
}
//每行輸入一個數值,輸入多個數值
public static void inputInteger() {
Scanner scanner = new Scanner(System.in);
String nextLine = scanner.nextLine();
int sum = 0;
while (nextLine != null && !nextLine.equals("")) {
sum += Integer.parseInt(nextLine);
System.out.println(sum);
nextLine = scanner.nextLine();
}
System.out.println("end of input integer");
}
// 每行輸入一個字符串,輸入多個字符串
public static void inputStr() {
Scanner scanner = new Scanner(System.in);
String nextLine = scanner.nextLine();
while (nextLine != null && !nextLine.equals("")) {
System.out.println(nextLine);
nextLine = scanner.nextLine();
}
System.out.println("end of input string");
}
//輸入多個數值,用空格隔開
public static void inputIntInLine() {
Scanner scanner = new Scanner(System.in);
String str = scanner.nextLine();
String[] numstr = str.split(" ");
int[] nums = new int[numstr.length];
for(int i = 0; i < numstr.length; i ++) {
nums[i] = Integer.parseInt(numstr[i]);
}
for(int n: nums) {
System.out.println(n);
}
System.out.println("end of input int in a line");
}
}