java中使用数组将值传出

public static void paraout(int inpara,int[] outpara){
inpara=inpara+2;
outpara[0] =inpara;
}
public static void main(String[] args) {
int inpara = 3;
int outpara[] = new int[1];
int outcontent = 0;
paraout(3,outpara);
outcontent =outpara[0];
System.out.println(outcontent);

}