Question

USING JAVA GIVEN THE CODE BELOW Choose the players to play each other in the rounds (there would be 3 rounds, quarter-final, semi-final and final) from the eligible players (players that lose a game are eliminated). For each round the highest ranked player plays the lowest ranked one i.e., in quarter-final round, player ranked 1 plays player ranked 8, player ranked 2 plays player ranked 7 and so on. Report the winner of each match, simulating using random values of your choice

CODE:

public class PlayerSort {

public static void main(String[] args) {
String[] names = {"Ronaldo", "Messi", "Bale", "Neymar", "Isco", "Hazard", "Mbappe", "Sterling"};
int[] ranks = {1, 2, 5, 3, 8, 4, 6, 7};

// sorting here
String tempName;
int tempRank;
for (int i = 0; i < names.length; i++) {
for (int j = 0; j < names.length-1; j++) {
if (ranks[j] > ranks[j+1]) {
tempName = names[j];
names[j] = names[j+1];
names[j+1] = tempName;

tempRank = ranks[j];
ranks[j] = ranks[j+1];
ranks[j+1] = tempRank;
}
}
}

// print players
System.out.println("Players sorted by ranks are:");
for (int i = 0; i < names.length; i++) {
System.out.println(ranks[i] + ". " + names[i]);
}
}
}

Answer 1

For this program, we just need to add the randomizing mechanism for the player matches. So, we take two players, one from each end of the array like: 1-8, 2-7, etc and then using a 50-50 chances(can be changed) of each player winning. So,if the outcome of the random() function is less than 0.5, then first player wins and the second one otherwise.

CODE:

public class Main {

public static void main(String[] args) {
String[] names = {"Ronaldo", "Messi", "Bale", "Neymar", "Isco", "Hazard", "Mbappe", "Sterling"};
int[] ranks = {1, 2, 5, 3, 8, 4, 6, 7};

// sorting here

String tempName;
int tempRank;
for (int i = 0; i < names.length; i++) {
for (int j = 0; j < names.length-1; j++) {
if (ranks[j] > ranks[j+1]) {
tempName = names[j];
names[j] = names[j+1];
names[j+1] = tempName;

tempRank = ranks[j];
ranks[j] = ranks[j+1];
ranks[j+1] = tempRank;
}
}
}

// print players
System.out.println("Players sorted by ranks are:");
for (int i = 0; i < names.length; i++) {
System.out.println(ranks[i] + ". " + names[i]);
}

for(int i=0; i<4; i++)
{
System.out.println("Match between "+names[i]+" and "+names[8-i-1]);
  
if (Math.random() < 0.5) //randomizing game output with 50-50 chances
System.out.println("Winner: "+names[i]);
else
System.out.println("Winner: "+names[8-i-1]);
}
}
}

OUTPUT: