java脚本

生成帮助文档

javadoc -encoding UTF-8 -charset UTF-8 Helloworld.java

scanner

public class test {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()){
            String line=scanner.next();
            System.out.println(line);
        //用完必关，形成良好习惯
        scanner.close();
        }
    }
}

for ... echo 循环

public class test {
    public static void main(String[] args) {
        int[] a={1,3,5,6};
        // a.for   生成下面语句快捷写法
        for (int i : a) {
            System.out.println(i);
        }
    }

}

Arrays.toString

public class test {
    public static void main(String[] args) {
        int[] a={1,3,5,6};
        // a.for
        System.out.println(Arrays.toString(a));
    }

}