8888888888888
1.
package sr; public class sj1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int[] a = { 10, 20, 30, 40, 50 }; for (int i = 0; i < a.length; i++) { System.out.println(a[i]); } } }
2.
package sr; import java.util.Scanner; public class sj2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub char[] a = { 'n', 'e', 'u', 's', 'o', 'f', 't', 'e', 'd', 'u', 'c', 'a', 't', 'i', 'o', 'n' }; char[] b = new char[16]; System.arraycopy(a, 0, b, 0, a.length); for (int i = 0; i < b.length; i++) { System.out.print(b[i]); } } }
3.
package sr; public class sj3 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int[] a = { 1, 6, 2, 3, 9, 4, 5, 7, 8 }; 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]) { int temp = a[j]; a[j] = a[j + 1]; a[j + 1] = temp; } } } for( int i = 0; i < a.length ; i++){ System.out.println(a[i]); } } }
4.
package sr; import java.util.Scanner; public class sj4 { /** * @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 + 0.1) * (j - 0.1); } } System.out.println("是"); 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(); } } }
5.
ppackage sr;
public class sj5 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] a = { 18, 25, 7, 36, 13, 2, 89, 63 };
int max = a[0];
int maxdx = 0;
for (int i = 0; i < a.length; i++) {
if (a[i] > max) {
max = a[i];
maxdx=i;
}
}
System.out.println("最大值是" + max);
System.out.println("下标是"+maxdx);
}
}
1.
package sr; import java.util.Scanner; public class zy1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int []a=new int[3]; Scanner input=new Scanner(System.in); for (int i = 0; i < a.length; i++) { a[i]=input.nextInt(); } for (int j = a.length-1; j >0; j--) { System.out.println(a[j]); } System.out.println(a[0]); } }
2.
package sr; import java.util.Scanner; public class zy2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input=new Scanner(System.in); int a[]=new int[5]; for (int i = 0; i < a.length; i++) { a[i]=input.nextInt(); } for (int i = 0; i < a.length; i++) { for (int j = i+1; j < a.length; j++) { if (a[i]==a[j]) { a[j]=0; } } } for (int i = 0; i < a.length; i++) { System.out.println(a[i]); } } }
3.
package sr; import java.util.Scanner; public class zy3 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int a[]={-10,2,3,246,-100,0,5}; int sum=0;int average=0; int max=0;int min=0; for (int i = 0; i < a.length; i++) { sum+=a[i]; average=sum/a.length; if (a[i]>max) { max=a[i]; } if (a[i]<min) { min=a[i]; } } System.out.println("平均值"+average+"最大值"+max+"最小值"+min); } }
4.·
package wasr; import java.util.Scanner; public class z4 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input=new Scanner(System.in); int a[]=new int [20]; a[0]=1; a[1]=1; for (int i = 2; i < a.length; i++) { a[i]=a[i-1]+a[i-2]; } for (int i = 0; i < a.length; i++) { System.out.println(a[i]); } } }
5.
package wasr; import java.util.Arrays; import java.util.Random; public class zy5 { /** * @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("排序后为"); Arrays.sort(a); for (int i = 0; i < a.length; i++) { System.out.println(a[i]); } } }