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public static void printMethods(Class c1){
Method[] methods = c1.getDeclaredMethods();
for(Method m : methods){
Class retType = m.getReturnType();
String name = m.getName();
System.out.println(” “);
//print modifiers,return type,and method name
String modifiers = Modifier.toString(m.getModifiers());
if(modifiers.length() > 0)
System.out.print(modifiers + ” “);
System.out.print(retType.getName()+” “+name+”(”);
//print parameter types
Class[] paramTypes = m.getParameterTypes();
for(int j=0;j<paramTypes.length;j++){
if(j>0)
System.out.print(”,”);
System.out.print(paramTypes[j].getName());
}
System.out.println(”);”);
}
}
/**
* prints all fields of a class
* @param c1 a class
*/
public static void printFields(Class c1){
Field[] fields = c1.getDeclaredFields();
for(Field f : fields){
Class type = f.getType();
String name = f.getName();
System.out.print(” “);
String modifiers = Modifier.toString(f.getModifiers());
if(modifiers.length() > 0)
System.out.print(modifiers + ” “);
System.out.println(type.getName() + ” “+ name+ “;”);
}
}
}
结果
Enter class (e.g. java.util.Date):
java.lang.Double (此行为输入的值)
public final
class java.lang.Double
extends java.lang.Number
{
public java.lang.Double(java.lang.String);
public java.lang.Double(double);
public int hashCode();
public static native long doubleToRawLongBits(double);
public static long doubleToLongBits(double);
public static native double longBitsToDouble(long);
public boolean equals(java.lang.Object);
public volatile int compareTo(java.lang.Object);
public int compareTo(java.lang.Double);
public static java.lang.String toString(double);
public java.lang.String toString();
public static java.lang.String toHexString(double);
public static int compare(double,double);
public static java.lang.Double valueOf(double);
public static java.lang.Double valueOf(java.lang.String);
public static boolean isNaN(double);
public boolean isNaN();
public byte byteValue();
public double doubleValue();
public float floatValue();
public int intValue();
public boolean isInfinite();
public static boolean isInfinite(double);
public long longValue();
public short shortValue();
public static double parseDouble(java.lang.String);
public static final double POSITIVE_INFINITY;
public static final double NEGATIVE_INFINITY;
public static final double NaN;
public static final double MAX_VALUE;
public static final double MIN_NORMAL;
public static final double MIN_VALUE;
public static final int MAX_EXPONENT;
public static final int MIN_EXPONENT;
public static final int SIZE;
public static final java.lang.Class TYPE;
private final double value;
private static final long serialVersionUID;
}
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只要笑一笑,没什么事请过不了