java生成并打印excel(java怎么打印)

1. java怎么打印

/* *组合 回溯 *a为源数据，调用时用f(a,0,"") */ void f(int[] a,int n,String v){ if(n==a.length){ System.out.println(v); }else{ f(a,n+1,v); f(a,n+1,v+","+a[n]); } }

2. JAVA怎么打印文字

想将信息打印到控制台上的话，直接用system.out.println()输出就行，没必要用日志来实现。

3. JAVA怎么打印99乘法表

public class multi {

public static void main(String[] args) {

//使用循环打印99乘法表

System.out.println("***使用循环打印99乘法表***");

for (int i = 1; i <= 9; i++) {

System.out.println("");

for (int j = 1; j <= i; j++) {

// System.out.print(i + "*" + j + "=" + i*j + "\t");

System.out.printf("%-10s",i + "*" + j + "=" + i*j ); //格式化打印流

}

}

}

}

4. java怎么打印对象

public static void recursive(List

try {

System.out.println(strList.get(index));

ss(strList, index - 1);

} catch (Exception e) {

return;

}

}

public static void main(String[] args) {

List

Scanner input = new Scanner(System.in);

for (int i = 0; i

list.add(input.next());

recursive(list, list.size() - 1);

}

5. java怎么打印三角形

Private Sub Command1_Click() n = 4 For i = 4 To 1 Step -1 For j = 1 To 4 - i Print " "; Next j For j = 1 To 2 * i - 1 Print Trim(Str(i)); Next j Print Next iEnd Sub