compile.sh

#!/bin/bash

javac Test.java
java Test

Test.java

import javax.crypto.Cipher;

class Test {
  public static void main(String[] args) {
    try {
      System.out.println("Hello World!");
      int maxKeyLen = Cipher.getMaxAllowedKeyLength("AES");
      System.out.println(maxKeyLen);
    } catch (Exception e){
      System.out.println("Sad world :(");
    }
  }
}