我无法在程序中拾取回车

Question

    Scanner input = new Scanner(new File("parallel.txt"));
    int numLine = input.nextInt();

    int [] array = new int[numLine];
    String [] Stringarray = new String[numLine];

    for (int i = 0; i< numLine; i++)
        {   
            Stringarray[i] = input.next();
            array[i] = input.nextInt(); 
            input.nextLine();
        }   

    for (int i = 0; i<Stringarray.length; i++)
        {
            for (int a = 0; a<array[a]; a++)
                out.print(Stringarray[i] + " ");
            out.println();
        }

}

}

Answer 1

您希望打印文件中与整数对应的字符串数组元素

因此您有一个如下所示的输入文件

3 //indicate the line number
string1 6
string2 7
string3 5

并且您希望得到如下所示的输出

string1 string1 string1 string1 string1 string1 
string2 string2 string2 string2 string2 string2 string2 
string3 string3 string3 string3 string3 

for (int a = 0; a<array.length; a++)
 for(int k=0;k<array[a];k++)
  System.out.print(Stringarray[a] + " ");
 System.out.println()