从键盘连续输入5个整数，判断正数、负数、0分别有多少个

package trkj;

import java.util.Scanner;

public class 判断数字的个数 {

public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
/*int plus = 0;
int mins = 0;
int zero = 0;
for (int i = 1; i < 6; i++) {
System.out.println("请输入第" + i + "个数");
int a = sc.nextInt();
if (a > 0) {
plus += 1;
} else if (a < 0) {
mins += 1;
} else {
zero += 1;
}

}
System.out.println("正数有：" + plus + "个");
System.out.println("负数有：" + mins + "个");
System.out.println("0有：" + zero + "个");*/

int[] num = new int[5];
int plus = 0;
int mins = 0;
int zero = 0;
for (int i = 1; i < 6; i++) {
System.out.println("请输入第" + i + "个数");
int a = num[i - 1] = Integer.parseInt(sc.nextLine().trim());
if (a > 0) {
plus += 1;
} else if (a < 0) {
mins += 1;
} else {
zero += 1;
}
}
System.out.println("正数有：" + plus + "个");
System.out.println("负数有：" + mins + "个");
System.out.println("0有：" + zero + "个");
}

}

package trkj;

import java.util.Scanner;

public class 判断数字的个数 {

public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
/*int plus = 0;
int mins = 0;
int zero = 0;
for (int i = 1; i < 6; i++) {
System.out.println("请输入第" + i + "个数");
int a = sc.nextInt();
if (a > 0) {
plus += 1;
} else if (a < 0) {
mins += 1;
} else {
zero += 1;
}

}
System.out.println("正数有：" + plus + "个");
System.out.println("负数有：" + mins + "个");
System.out.println("0有：" + zero + "个");*/

int[] num = new int[5];
int plus = 0;
int mins = 0;
int zero = 0;
for (int i = 1; i < 6; i++) {
System.out.println("请输入第" + i + "个数");
int a = num[i - 1] = Integer.parseInt(sc.nextLine().trim());
if (a > 0) {
plus += 1;
} else if (a < 0) {
mins += 1;
} else {
zero += 1;
}
}
System.out.println("正数有：" + plus + "个");
System.out.println("负数有：" + mins + "个");
System.out.println("0有：" + zero + "个");
}

}