1. They were used for loops, while loops, do require that all cycles can be an integer divisible by 3 and between 1 and 100. (Knowledge Point: Loops)
package doom3;
public class thefourweekworks1_0 {
public static void main(String[] args) {
// TODO Auto-generated method stub
int i=1;
for(i=1;i<=100;i++){
if(i%3==0)
System.out.print(" "+i+" ");
}
}
}
package doom3;
public class thefourweekworks1_1 {
public static void main(String[] args) {
// TODO Auto-generated method stub
int i=1;
while(i<=100){
if(i%3==0)
System.out.print(" "+i+" ");
i++;
}
}
}
package doom3;
public class thefourweekworks1_2 {
public static void main(String[] args) {
// TODO Auto-generated method stub
int i = 1;
do {
if (i % 3 == 0)
System.out.print(" " + i + " ");
i++;
} while (i <= 100);
}
}
2. Output a number between 0-9, but does not include 5. (Knowledge Point: condition, loop)
package doom3;
public class thefourweekworks2 {
public static void main(String[] args) {
// TODO Auto-generated method stub
int i=0;
for(i=0;i<10;i++){
if(i==5)
continue;
System.out.print(" "+i+" ");
}
}
}
3. Write a program, find the integer n factorial, for example, 5 factorial is 1 * 2 * 3 * 4 * 5 (knowledge: loop)
package doom3;
import java.util.Scanner;
public class thefourweekworks3 {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input = new Scanner(System.in);
System.out.print("请输入一个数字:");
int n = input.nextInt();
int i = 1;
int sum = 1;
for (i = 1; i <= n; i++) {
sum *= i;
}
System.out.println(sum);
}
}
4. Write a program, enter any student achievement, if the input is not legitimate (<0 or> 100), suggesting that input errors, re-enter until the input end of the legal procedure (knowledge: Loops)
Doom3 Package;
Import java.util.Scanner;
public class thefourweekworks4 {
public static void main (String [] args) {
// the TODO Auto-Generated Method Stub
Scanner Scanner new new INPUT = (the System.in);
of System.out.print ( "Please enter a student's achievement:");
int i = input.nextInt ();
the while (i <0 || i> 100) {
System.out.print ( "enter your achievements have questions, please re-enter : ");
i = input.nextInt ();
}
System.out.print (" enter your classmates score: "+ i);
}
}
5. Suppose a staff this year's annual salary is 30,000 yuan, the annual salary of the annual growth rate of 6%. Write a Java application to calculate the employee's annual salary after 10 years, and counting the next 10 years (counting from the year) of total income. (Knowledge Point: Loops)
Doom3 Package;
public class thefourweekworks5 {
public static void main (String [] args) {
// the TODO Auto-Generated Method Stub
int I = 0;
Double n-= 30000;
Double n-COUNT =;
for (I = 0; I <= . 9; I ++) {
n-n-* = 1.06;
COUNT = COUNT + n-;
}
System.out.println ( "10 years after the employee's salary:" n-+);
System.out.println ( "the employee 10 years total income: "COUNT +);
}
}
