Examples of java.util.Scanner.nextInt()

java.util.Scanner.nextInt()
Scans the next token of the input as an int.
An invocation of this method of the form nextInt() behaves in exactly the same way as the invocation nextInt(radix), where radix is the default radix of this scanner. @return the int scanned from the input @throws InputMismatchException if the next token does not match the Integer regular expression, or is out of range @throws NoSuchElementException if input is exhausted @throws IllegalStateException if this scanner is closed

    int M = in.nextInt();
    Edge[] edges = new Edge[M];
    for (int m = 0; m < M; m++) {
      int a = in.nextInt() - 1;
      int b = in.nextInt() - 1;
      int c = in.nextInt();
      edges[m] = new Edge(a, b, c);
    }
    return edges;
  }
  int a, b;

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             "4:Enquire Domain " + 
             "5:Exit";
         
         System.out.println(commandStr);
         Scanner in = new Scanner(System.in);
         int choice = in.nextInt();
         
         switch(choice)
         {
            case 0: //Encrypt Keystore Password
               System.out.println("Enter Keystore password");

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                  System.out.println("Enter Salt (String should be at least 8 characters)");
                  saltStr = in.next(); 
               }while(saltStr.length() < 8);
               
               System.out.println("Enter Iterator Count (integer value)");
               int iterationCount = in.nextInt();
               
               String ksPassFileName = PasswordMaskManagement.keystorePassEncFileName;
               String[] filePasswordArgs = new String[]
                                          {saltStr, iterationCount+""
                     , passStr, ksPassFileName};

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  public static byte[] bitfield = new byte [(int) (numberOfInts / 8)];
  
  public static void findOpenNumber() throws FileNotFoundException {
    Scanner in = new Scanner(new FileReader("Chapter 10/Question10_3/input_file_q10_3.txt"));
    while (in.hasNextInt()) {
      int n = in.nextInt ();
      /* Finds the corresponding number in the bitfield by using
       * the OR operator to set the nth bit of a byte 
       * (e.g., 10 would correspond to the 2nd bit of index 2 in
       * the byte array). */
      bitfield [n / 8] |= 1 << (n % 8);

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      Scanner s = new Scanner (aktFile);
      i = 0;
      while (s.hasNextInt ())
  {
    tmp = s.nextInt ();
    this.myHarness.check (tmp, numbers[i],
        "nextInt() -> " + tmp + " != " + numbers[i]);
    i++;
  }
      this.myHarness.check (i, numbers.length,

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    this.myHarness.check (tmpStr, delimiter,
        "get / setDelimiter fail (\"" + tmpStr +
        "\" != \"" + delimiter);
    this.myHarness.check (s1.hasNext (), true, "first hasNext()");
    this.myHarness.check (s1.hasNextInt (), true, "first hasNextInt()");
    this.myHarness.check (s1.nextInt (), 1, "nextInt()");
    this.myHarness.check (s1.hasNextInt (), true, "hasNextInt()");
    this.myHarness.check (s1.hasNextBoolean (), false, "hasNextBoolean()");
    this.myHarness.check (s1.hasNextByte (), true, "hasNextByte()");
    this.myHarness.check (s1.nextInt (), 2, "2. nextInt()");
    this.myHarness.check (s1.hasNext (), true, "3. hasNext()");

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    this.myHarness.check (s1.hasNextInt (), true, "first hasNextInt()");
    this.myHarness.check (s1.nextInt (), 1, "nextInt()");
    this.myHarness.check (s1.hasNextInt (), true, "hasNextInt()");
    this.myHarness.check (s1.hasNextBoolean (), false, "hasNextBoolean()");
    this.myHarness.check (s1.hasNextByte (), true, "hasNextByte()");
    this.myHarness.check (s1.nextInt (), 2, "2. nextInt()");
    this.myHarness.check (s1.hasNext (), true, "3. hasNext()");
    this.myHarness.check (s1.hasNextBigInteger (), false,
        "hasNextBigInteger()");
    this.myHarness.check (s1.next (), "red", "3. next()");
    this.myHarness.check (s1.next (), "blue", "4. next()");

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      Scanner s = new Scanner (this.aktFile);
      i = 0;
      while (s.hasNextInt ())
  {
    tmp = s.nextInt ();
    this.myHarness.check (tmp, numbers[i],
        "nextInt() -> " + tmp + " != " + numbers[i]);
    i++;
  }
      this.myHarness.check (i, numbers.length,

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    myHarness.check(s.hasNextByte (16), "hasNextByte(16)");
    myHarness.check(s.nextByte(16), 95, "nextByte is 95");
    myHarness.check(s.hasNextShort(16), "hasNextShort(16)");
    myHarness.check(s.nextShort(16), 32767, "nextShort is 32767");
    myHarness.check(s.hasNextInt(16), "hasNextInt(16)");
    myHarness.check(s.nextInt(16), 1329545071, "nextInt is 1329545071");
    myHarness.check(s.hasNextLong(16), "hasNextLong(16)");
    myHarness.check(s.nextLong(16), 69540603232238L, "nextLong is 69540603232238");
    myHarness.check(s.hasNextBigInteger(16), "hasNextBigInteger(16)");
    myHarness.check(s.nextBigInteger(16), BigInteger.valueOf(5496130961322L),
        "nextBigInteger is 5496130961322");

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    myHarness.check(s.hasNextByte (), "hasNextByte()");
    myHarness.check(s.nextByte(), 95, "nextByte is 95");
    myHarness.check(s.hasNextShort(), "hasNextShort()");
    myHarness.check(s.nextShort(), 32767, "nextShort is 32767");
    myHarness.check(s.hasNextInt(), "hasNextInt()");
    myHarness.check(s.nextInt(), 1329545071, "nextInt is 1329545071");
    myHarness.check(s.hasNextLong(), "hasNextLong()");
    myHarness.check(s.nextLong(), 69540603232238L, "nextLong is 69540603232238");
    myHarness.check(s.hasNextBigInteger(), "hasNextBigInteger()");
    myHarness.check(s.nextBigInteger(), BigInteger.valueOf(5496130961322L),
        "nextBigInteger is 5496130961322");

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