Question

很简单，我只想要一个代码（而不是在控制台中打印出单独的文本行）只用新值更新一行文本，或者“替换”它。

当前代码：

//this code was expanded into a more configurable version
//original author is zengr

public final class EnumRandValue {

public static final void main(String... aArgs){
int min = 12;
int max = 157;
int ints = 1000;
//how many numbers to generate?

int enumeration = 1;
int maximumints = 1000;
//advanced users only!

log("Generating " + ints + " random integers in range of " + (min-1) + " and " + (max-1) + ".");

//note a single Random object is reused here
if(min < max || min != max) {
Random randomGenerator = new Random();
for (int idx = 1; idx <= ints; ++idx){
  int randomInt = randomGenerator.nextInt(max);
  log("E" + enumeration++ + ": " + randomInt);
  if(enumeration >= maximumints) {
      String breakmsg = "Exceeded enums limit (" + maximumints + ").";
      log(breakmsg);
      return;

  } else if(min >= max) {
  String breakmsg = "Invalid min/max values.";
  log(breakmsg);
  return;     

  } else {
  //really nothing happens here
  //some code was excluded

Answer 1

我假设你的log（）方法是一个静态方法，它打印传递给它的字符串。

在这种情况下，如果您只想打印for循环的最后一行，请在打印前检查以下条件。

if(idx==ints)
log("E" + enumeration++ + ": " + randomInt);

如何更新一行而不是多行？

1 个答案: