package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { 10, 20, 30, 40, 50 };
for (int i : a) {
System.out.println(i);
}
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] a = { "neusoft" };
String[] b = new String[a.length];
System.arraycopy(a, 0, b, 0, a.length);
for (String string : b) {
System.out.println(string);
}
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { 1, 6, 2, 3, 9, 4, 5, 7, 8 };
int temp;
for (int i = 0; i < a.length - 1; i++) {
for (int j = 0; j < a.length - 1 - i; j++) {
if (a[j] > a[j + 1]) {
temp = a[j];
a[j] = a[j + 1];
a[j + 1] = temp;
}
}
}
for (int i : a) {
System.out.println(i);
}
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
double[][] a= new double[5][4];
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length; j++) {
a[i][j] = i;
}
}
System.out.println("二维数组为");
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length; j++) {
System.out.print(a[i][j] + " ");
}
System.out.println();
}
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { 18, 25, 7, 6, 13, 2, 89, 63 };
int max = a[0];
int maxid = 0;
for (int i = 0; i < a.length; i++) {
if (a[i] > max) {
max = a[i];
maxid = i;
}
}
System.out.println("最大值是" + max + ",下标是" + maxid);
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { 18, 25, 7, 6, 13, 2, 89, 63 };
for (int i = 0; i < a.length - 1; i++) {
for (int j = 0; j < a.length - 1 - i; j++) {
int temp = a[j];
a[j] = a[j + 1];
a[j + 1] = temp;
}
}
for (int i : a) {
System.out.println(i);
}
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { 1, 3, 7, 6, 1, 2, 9, 3 };
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a.length; j++) {
if (a[i] == a[j] && i != j) {
a[j] = 0;
}
}
}
for (int i : a) {
System.out.println(i);
}
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { -10, 2, 3, 246, -100, 0, 5 };
int max = 0;
int min = 0;
int sum = 0;
double aver = 0;
for (int i = 0; i < a.length; i++) {
sum += a[i];
if (max < a[i])
max = a[i];
if (min > a[i])
min = a[i];
}
aver=a.length;
System.out.println("平均值是:" + sum / aver);
System.out.println("最大值是：" + max);
System.out.println("最小值是：" + min);
}
}
package Home;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a= new int[20];
a[0] = 1;
a[1] = 1;
System.out.print(a[0] + "\t" + a[1] + "\t");
for (int i = 2; i < 20; i++) {
a[i] = a[i - 1] + a[i - 2];
System.out.print(a[i] + "\t");
}
}
}
package Home;
import java.util.Arrays;
import java.util.Random;
public class Home {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a= new int[10];
Random r = new Random();
for (int i = 0; i < a.length; i++) {
a[i] = r.nextInt(101);
}
for (int i = 0; i < a.length; i++) {
System.out.println(a[i]);
}
System.out.println("排序后");
Arrays.sort(a);
for (int i = 0; i < a.length; i++) {
System.out.println(a[i]);
}
}
}
