1.
public class test1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int a,b,c,n; n=345; a=n/100; b=n%100/10; c=n%100%10; System.out.println(a+b+c); } }
2.
public class test1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub double x,y; x=36; y=x*9/5; System.out.println(y); } }
3.
package work_oc; public class work_3 { public static void main(String[] args) { // TODO Auto-generated method stub int a=5; int b=8; int c; System.out.println("交换前a,b的值分别为"+a+"和"+b); c=a; a=b; b=c; System.out.println("交换后a,b的值分别为"+a+"和"+b); } }
4.
package work_oc; public class work_4 { public static void main(String[] args) { // TODO Auto-generated method stub int n=12141; System.out.println("五位数为:"+n); int a; a=n-(n%100); System.out.println("保留至百位后:"+a); } }
5.
package work_oc; public class work_5 { public static void main(String[] args) { // TODO Auto-generated method stub int a=1234; System.out.println("其各位数总和为\n"); int b,c,d,e; b=a/1000; e=a%10; c=a/100-b*10; d=(a%100-e)/10; System.out.println(b+c+d+e); } }
6.
package work_oc; public class work_6 { public static void main(String[] args) { // TODO Auto-generated method stub int field='A'; System.out.println("其小写为"); field=field+32; System.out.println((char)field); } }