class Kadai{
    public static void main(String[] mes){
        int[] a = {5,-1,3,4,-2,7};
 
        int count =0;
 
        for (int i=0;i<a.length; i++) 
            if (a[i]>0)
                count++;
 
        int[] b =new int[count]; 
 
        int j =0; 
        for (int i=0; i<a.length;i++) 
            if(a[i]>0)
                b[j++]=a[i]; 
 
        /*ここから下は確認用なので提出する前に消すこと*/
        System.out.println("aの配列");
        for (int i=0; i<a.length;i++)
            System.out.print(String.valueOf(a[i]) + " ");
        System.out.println("\nbの配列");
        for (int i=0; i<b.length;i++)
            System.out.print(String.valueOf(b[i]) + " ");
    }
}

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