这个程序无结果？？
import java.util.Scanner;public class gaohaoA {
public static void main(String args[]) {
Scanner reader = new Scanner(System.in);
double a = 0,b = 0,c = 0;
System.out.print("输入边a：");
a = reader.nextDouble();
System.out.print("输入边b：");
b = reader.nextDouble();
System.out.print("输入边c：");
c = reader.nextDouble();
if(a + b > c && b + c > a && a + c > b) {
if(a*a == b*b + c*c || b*b == a*a + c*c || c*c == a*a + b*b) {
System.out.printf("%-8.3f%-8.3%-8.3f构造是直角三角形",a,b,c);
}
else if(a*a < b*b + c*c && b*b < a*a + c*c && c*c < a*a + b*b) {
System.out.printf("%-8.3f%-8.3%-8.3f构造是锐角三角形",a,b,c);
}
else {
System.out.printf("%-8.3f%-8.3%-8.3f构造是钝角三角形",a,b,c);
}
}
else {
System.out.printf("%f,%f,%f不构成三角形",a,b,c);
}
}
}
会出现如下结果：
输入边a：3
输入边b：4
输入边c：5
Exception in thread "main" java.util.IllegalFormatPrecisionException: 3
at java.util.Formatter$FormatSpecifier.checkText(Formatter.java:2940)
at java.util.Formatter$FormatSpecifier.<init>(Formatter.java:2647)
at java.util.Formatter.parse(Formatter.java:2480)
at java.util.Formatter.format(Formatter.java:2414)
at java.io.PrintStream.format(PrintStream.java:920)
at java.io.PrintStream.printf(PrintStream.java:821)
at gaohaoA.main(gaohaoA.java:14)
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结果
----------------解决方案--------------------------------------------------------
急求~~~谢谢~~~
----------------解决方案--------------------------------------------------------
请问你在写C代码吗？
程序代码：
import java.util.Scanner;
public class gaohaoA {
public static void main(String args[]) {
Scanner reader = new Scanner(System.in);
double a = 0,b = 0,c = 0;
System.out.print("输入边a：");
a = reader.nextDouble();
System.out.print("输入边b：");
b = reader.nextDouble();
System.out.print("输入边c：");
c = reader.nextDouble();
if(a + b > c && b + c > a && a + c > b) {
if(a*a == b*b + c*c || b*b == a*a + c*c || c*c == a*a + b*b) {
System.out.printf("构造是直角三角形",a,b,c);
}
else if(a*a < b*b + c*c && b*b < a*a + c*c && c*c < a*a + b*b) {
System.out.printf("构造是锐角三角形",a,b,c);
}
else {
System.out.printf("构造是钝角三角形",a,b,c);
}
}
else {
System.out.printf("不构成三角形",a,b,c);
}
}
}
public class gaohaoA {
public static void main(String args[]) {
Scanner reader = new Scanner(System.in);
double a = 0,b = 0,c = 0;
System.out.print("输入边a：");
a = reader.nextDouble();
System.out.print("输入边b：");
b = reader.nextDouble();
System.out.print("输入边c：");
c = reader.nextDouble();
if(a + b > c && b + c > a && a + c > b) {
if(a*a == b*b + c*c || b*b == a*a + c*c || c*c == a*a + b*b) {
System.out.printf("构造是直角三角形",a,b,c);
}
else if(a*a < b*b + c*c && b*b < a*a + c*c && c*c < a*a + b*b) {
System.out.printf("构造是锐角三角形",a,b,c);
}
else {
System.out.printf("构造是钝角三角形",a,b,c);
}
}
else {
System.out.printf("不构成三角形",a,b,c);
}
}
}
----------------解决方案--------------------------------------------------------
Java吧~~~~
----------------解决方案--------------------------------------------------------
java里面的输出是 System.out.print("构造是直角三角形"+a+b+c);吧
----------------解决方案--------------------------------------------------------
程序代码：
import java.util.Scanner;
public class gaohaoA {
public static void main(String args[])
{
Scanner reader = new Scanner(System.in);
double a = 0,b = 0,c = 0;
System.out.print("输入边a：");
a = reader.nextDouble();
System.out.print("输入边b：");
b = reader.nextDouble();
System.out.print("输入边c：");
c = reader.nextDouble();
try{
if(a + b > c && b + c > a && a + c > b)
{
if(a*a == b*b + c*c || b*b == a*a + c*c || c*c == a*a + b*b)
{
System.out.println ("aaa");
System.out.printf("%f,%f,%f构造是直角三角形",a,b,c);
}
else if(a*a < b*b + c*c && b*b < a*a + c*c && c*c < a*a + b*b)
{
System.out.println ("bb");
System.out.printf("%f,%f,%f构造是锐角三角形",a,b,c);
}
else
{
System.out.println ("cc");
System.out.printf("%f,%f,%f构造是钝角三角形",a,b,c);
}
}
else
{
System.out.println ("xx");
System.out.printf("%f,%f,%f不构成三角形",a,b,c);
}
}catch(Exception e)
{
System.out.println (e.toString());
}
}
}
我想是这里出了问题：public class gaohaoA {
public static void main(String args[])
{
Scanner reader = new Scanner(System.in);
double a = 0,b = 0,c = 0;
System.out.print("输入边a：");
a = reader.nextDouble();
System.out.print("输入边b：");
b = reader.nextDouble();
System.out.print("输入边c：");
c = reader.nextDouble();
try{
if(a + b > c && b + c > a && a + c > b)
{
if(a*a == b*b + c*c || b*b == a*a + c*c || c*c == a*a + b*b)
{
System.out.println ("aaa");
System.out.printf("%f,%f,%f构造是直角三角形",a,b,c);
}
else if(a*a < b*b + c*c && b*b < a*a + c*c && c*c < a*a + b*b)
{
System.out.println ("bb");
System.out.printf("%f,%f,%f构造是锐角三角形",a,b,c);
}
else
{
System.out.println ("cc");
System.out.printf("%f,%f,%f构造是钝角三角形",a,b,c);
}
}
else
{
System.out.println ("xx");
System.out.printf("%f,%f,%f不构成三角形",a,b,c);
}
}catch(Exception e)
{
System.out.println (e.toString());
}
}
}
("%-8.3f%-8.3%-8.3f构造是直角三角形",a,b,c);
("%-8.3f%-8.3%-8.3f构造是锐角三角形",a,b,c);
("%-8.3f%-8.3%-8.3f构造是钝角三角形",a,b,c);
----------------解决方案--------------------------------------------------------
这个被雷到了～～～～～～好好看语法啊楼主，C和JAVA是像，但不是一样
----------------解决方案--------------------------------------------------------
呵呵，c楼主~~~
----------------解决方案--------------------------------------------------------