编辑代码

class Main {
	public static void main(String[] args) {
        
		System.out.println("Hello world!   - java.jsrun.net ");
	}
    public int[]merge(int[] a,int[] b)
    {
        int pa = pb = pc = 0;
        int m = a.length;
        int n = b.length;
        int[] c = new int[ m + n ]

    }
}