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       NumberFormat nf = NumberFormat.getIntegerInstance();
       double v=12.6;
       System.out.println(nf.format(v));
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class Tank{
 int level;
}
public class Assignment {
 public static void main(String[] args) {
  
  Tank t1 = new Tank();
  Tank t2 = new Tank();
  t1.level= 9;
  t2.level= 47;
  
  System.out.println("1:t1.l ......
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