Java中的空间格式说明符
对于格式说明符，请导入以下包-
import java.util.Formatter;
创建一个格式化程序对象并设置空间格式说明符-
Formatter f = new Formatter();
f.format("% d", -50);
System.out.println(f);
f = new Formatter();
f.format("% d", 90);
System.out.println(f);
f = new Formatter();
f.format("%10d", -50);
System.out.println(f);
f = new Formatter();
f.format("% 10d", 90);
System.out.println(f);以下是显示不同格式的空间格式说明符的示例-
示例
import java.util.Formatter;
public class Demo {
public static void main(String args[]) {
Formatter f = new Formatter();
f.format("% d", -50);
System.out.println(f);
f = new Formatter();
f.format("% d", 90);
System.out.println(f);
f = new Formatter();
f.format("%10d", -50);
System.out.println(f);
f = new Formatter();
f.format("% 10d", 90);
System.out.println(f);
f = new Formatter();
f.format("%12.2f", -7.598);
System.out.println(f);
f = new Formatter();
f.format("% 12.3f", 90.87787);
System.out.println(f);
}
}输出结果
-50 90 -50 90 -7.60 90.878