Java Loop Example

Source: Internet
Author: User

Calculates the odd and even numbers within 100 with a while loop and

public class test{

public static void Main (string[] args) {

int sum=0;

int num=0;

for (int i=0;i<100;i++) {

if (i%2==0) {

Sum+=i;

}else{

Num+=i;

}

}

System.out.println ("The number of even-numbered and:"+sum);

System.out.println ("The number of odd-numbered and:"+num);

}

}

All the numbers divisible by 5 in the loop output 1000, and output up to 3

public void test{

int i=0;

int j=0;

while (i<1000) {//condition

if (i%5==0) {//Can be divisible by 5

System.out.println (i+ "\ t");

j + +;

if (j%3==0) {//three X

System.out.println ("\ n");

j=0;

}

}

i++;

}

}

99 Multiplication Table

public void Test () {

for (int i=1;i<10;i++) {

for (int j=1;j<=i;j++) {

SYSTEM.OUT.PRINTLN (j+ "*" +i+ "=" + (I*J<10))

}

}

System.out.println ();

}

Factorial:

public void num () {

int sum=0;

for (int i=1;i<=100;i++) {

int temp=0;

for (int j=1;j<=i,j++) {

Temp+=j;

}

Sum+=temp;

}

SYSTEM.OUT.PRINTLN (sum);

}

/**
* Programming: 1! +2! + ... +15!
*/
void Addfactorial () {
Long result = 0;
for (int i=1;i<=15;i++) {
int temp = 1;
for (int j=1;j<=i;j++) {
Temp *=j;
}
Result +=temp;
}
SYSTEM.OUT.PRINTLN (result);
}
}

Enter a string that counts the number of uppercase and lowercase letters;

public static void Main (string[] args) {

int lowe = 0;

int upper = 0;

for (int i=0;i<str.lenth (); i++) {

Char c =str.charat (i);

if (c>= ' a ' &&c<= ' Z ') {

lowe++;

}

if (c>= ' A ' &&c<= ' Z ') {

upper++;

}

}

System.out.printf (" Number of capital letters:%d", upper);

System.out.printf (" number of lowercase letters:%d", Lowe);

}

Java Loop Example

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