BPJ 01-12 Daily B

Background

See the bottom for quick lessons.

Human types ten integers. Compute their sum.

 5 10 20 30 40 50 60 70 80 90
 or
 10 20 30 40 50
 60 70 80 90 100

How many lines does the person type until they type DONE on a line by itself? Then print the count.

Ask the human for two decimal number, multiply them and trucate the answer into an int variable. Print it.

Read a line of text. Use a switch on a char (not String) to keep totals of each group and print at the end.

Ask human for a start number. Ask for an end number. Print all of the numbers start through end with a “.” after each. If the end is less than start, print a message “Warning: end < start!” If you hit a multiple of 29 in the range, print “EARLY STOP” and stop immediately after printing it.

Use a do-while loop to add up an unknown number of ints, quitting when the input number is 0.
As long as the keyboard reader has another word available, read it. Print the total number of words. Note: anything counts as a word: “This @ 5 words.” Nota bene: in Github Codespaces, you will need to hit Control-D to indicate there are no more words.

{
    String desc;
    if (x < 0) {
        desc = "negative ";
    } else {
        desc = "positive ";
    }
    desc += Math.abs(x);
}

for(int k=0; k<HOW_MANY; k++) {
    System.out.println(k);
}

{
    int n = (int)(10*Math.random());
    String out = "";
    while (n>0) {
        out += ".";
        n--;
    }
    System.out.println(out);
}