java代码正确版本

正确例题 import java.util.Random; public class Test { public static void main(String[] args) { String [] arr=new String[]{"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"}; Random random = new Random(); int index = random.nextInt(arr.length); System.out.println(arr[index]); } }

正确例题 import java.util.Random; public class Test { public static void main(String[] args) { String [] arr=new String[]{"猫","狗","老虎","猪"}; Random random = new Random(); int index = random.nextInt(arr.length); System.out.println(arr[index]); } }

正确例题 import java.util.Random; public class Test { public static void main(String[] args) { String [] arr=new String[]{"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"}; Random random = new Random(); int s = random.nextInt(12); System.out.println(arr[s]); } }

正确例题 import java.util.Random; public class Test { public static void main(String[] args) { String [] arr=new String[]{"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"}; Random random = new Random(); for(int i=0;i<arr.length;i++){ int s = random.nextInt(12); System.out.println(arr[s]); } } }

正确例题 import java.util.Random; public class Test { public static void main(String[] args) { String [] arr=new String[]{"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"}; Random random = new Random(); for(int i=0;i<10;i++){ int s = random.nextInt(12); System.out.println(arr[s]); } } }

正确例题 import java.util.Random; public class Test { public static void main(String[] args) { String [] arr=new String[]{"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"}; Random random = new Random(); for(int i=0;i<10;i++){ for(int j=0;j<10;j++){ int s = random.nextInt(12); System.out.println(arr[s]); } } } }