Java 在 console.printf 上出错

Question

我在 Netbeans 中输入了以下代码，但出现错误

package learn.java;

import java.io.Console;

public class LearnJava {
    public static void main(String[] args) {
       Console console = System.console();
       console.printf("Hello My Name Is , Nitesh");
    }
}

错误:

Exception in thread "main" java.lang.NullPointerException
    at learn.java.LearnJava.main(LearnJava.java:8) C:\Users\The Alian\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 0 seconds)

Answer 1

您启用了控制台吗？请在此处查看说明:https://www.java.com/en/download/help/javaconsole.xml

如果做不到这一点，您可以用简单的替换控制台调用

System.out.println("Hello My Name Is , Nitesh");

或者对于格式化字符串:

String name = "Nitesh";
System.out.format("Hello My Name Is , %s", name);