java判断三角形形状

java编写三角形判断程序

import java.util.Scanner;

public class triangle {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入a的值");
int a = sc.nextInt();
System.out.println("请输入b的值");
int b = sc.nextInt();
System.out.println("请输入c的值");
int c = sc.nextInt();
System.out.println("边长为abc：" + test1(a, b, c));
System.out.println("边长为abc：" + test(a, b, c));
}
public static String test(int x, int y, int z) {
String s = "null";
if (x > 0 && y > 0 && z > 0) {
if (x + y > z && x + z > y && y + z > x) {
if (x == y || x == z || y == z) {

if (x == y && y == z) {
s = "是等边三角形";
} else {
s = "是等腰三角形";
}
} else {
s = "是普通三角形";
}
} else {
s = "不构成三角形";
}

} else {
s = "不构成三角形";
}
return s;
}
public static String test1(int x, int y, int z) {
String s = null;
if (x > 0 && y > 0 && z > 0) {
if (x + y > z && x + z > y && y + z > x) {
if (x == y && y == z) {
s = "是等边三角形";
} else if (x == y || x == z || y == z) {
s = "是等腰三角形";
} else {
s = "是普通三角形";
}
} else {
s = "不构成三角形";
}
} else {
s = "不构成三角形";
}
return s;
}

}