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  1. import java.util.Objects;
  2.  
  3. class Ideone {
  4.  
  5.     public static void main (String[] args) {
  6.         Loop.from(0).to(10).execute(() -> {
  7.             System.out.println("Hello World!");
  8.         });
  9.     }
  10. }
  11.  
  12. class Loop {
  13.     private final int from;
  14.     private final int to;
  15.  
  16.     private Loop(Builder builder) {
  17.         this.from = builder.from();
  18.         this.to = builder.to();
  19.     }
  20.  
  21.     public static LoopFromSetBuilder from(int from) {
  22.         return new Builder().from(from);
  23.     }
  24.  
  25.     public static LoopToSetBuilder to(int to) {
  26.         return new Builder().to(to);
  27.     }
  28.  
  29.     public void execute(Runnable executable) {
  30.         for (int i = from; i < to; i++) {
  31.             executable.run();
  32.         }
  33.     }
  34.  
  35.     public static class Builder  implements LoopFromSetBuilder, LoopToSetBuilder, LoopAllSetBuilder {
  36.         private int from = 0;
  37.         private Integer to = null;
  38.  
  39.         private Builder() {}
  40.  
  41.         public Builder from(int from) {
  42.             this.from = from;
  43.             return this;
  44.         }
  45.  
  46.         private int from() {
  47.             return from;
  48.         }
  49.  
  50.         public Builder to(int to) {
  51.             this.to = to;
  52.             return this;
  53.         }
  54.  
  55.         private int to() {
  56.             return to;
  57.         }
  58.  
  59.         public void execute(Runnable runnable) {
  60.             Objects.requireNonNull(runnable);
  61.             new Loop(this).execute(runnable);
  62.         }
  63.     }
  64.  
  65.     interface LoopFromSetBuilder {
  66.         LoopAllSetBuilder to(int to);
  67.     }
  68.  
  69.     interface LoopToSetBuilder {
  70.         LoopAllSetBuilder from(int from);
  71.     }
  72.  
  73.     interface LoopAllSetBuilder {
  74.         void execute(Runnable runnable);
  75.     }
  76. }
Success #stdin #stdout 0.06s 33680KB
comments (?)
stdin 
Standard input is empty
stdout 
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
https://ideone.com/x0B4w9
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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