user input
5
Required output (using while loop)
1 2 3 4 5
2 4 6 8 10
3 6 9 12 15
4 8 12 16 20
5 10 15 20 25
Code:
while (temp1 <= a) {
while (temp2 <= a) {
temp = temp2 * temp1;
System.out.print(temp + " ");
temp2++;
}
temp1++;
System.out.println();
}
i am taking a as input and try to form that figure but i can't.. please help
Value of temp2 after inner while loop will be a+1. Since you not resetting it to 1 later you will not enter this inner loop again because condition while(temp2<=a) will not be fulfilled. To correct it set temp2 to 1 inside outer loop, before or after inner loop.
If I have to break down the problem into simple words,
There are n number of ways you can do it.
I guess using for loops would be the simplest.
Code comment below explains what is wrong with your code.
//assume temp1 equals 1
while(temp1 <= a){
temp2 = 1;//you're primarily forgetting to reset the temp2 count
while(temp2 <= a){
temp = temp1*temp2;
System.out.print(temp + " ");
temp2++;
}
temp1++;
System.out.println();
}
int a = 5; //Or however else you get this value.
//Initialize your values
int temp1 = 1;
int temp2 = 1;
int temp; //Only need a declaration here.
while (temp1 <= a) {
while(temp2 <= a) {
temp = temp1*temp2;
System.out.print(temp + " ");
temp1++;
temp2++;
}
//This executes between inner loops
temp2 = 1; //It's important to reset
System.out.println();
}
Or another compact way:
int a = 5;
int row = 0;
int col = 0;
while (++row <= a) {
while(++col <= a) {
System.out.print(row*col + " ");
}
col = 0;
System.out.println();
}
for(int i=1; i<=a; i++){
System.out.print(i);
for(int j=2; j<=a; j++){
int val = i*j;
System.out.print(" " + val);
}
System.out.println();
}
int a = 5;
int temp1 = 1;
int temp2= 1;
int temp = 1;
while(temp1 <= a){
while(temp2 <= a){
temp = temp2*temp1;
System.out.print(temp + " ");
temp2++;
}
System.out.println();
temp1++;
temp2=1;
}
The code above should have your desired results. Reset the temp2 variable at the end of the loop. Just change int a = 5 to whatever you want.
Additional Answer:
int userInput = 5;
int answer = 0;
for(int y = 0; y < userInput; y++){
for(int x = 0; x < userInput; x++ ){
answer = x * y;
System.out.print(answer + " ");
}
System.out.println();
}
With this answer you do not need to reset the temp variable and will produce the desired results
forloops? Or your debugger to debug your code? I suspecttemp2should be reset to 1 somewhere.